(Generalized form) A number of the form n⋅bn - 1, with n > b-2. more
The generalized Woodall numbers up to 10
15 :
1,
7,
17,
23,
63,
80,
159,
191,
323,
383,
895,
1023,
1214,
2047,
2499,
4373,
4607,
5119,
10239,
15308,
15624,
22527,
24575,
38879,
49151,
52487,
93749,
106495,
114687,
177146,
229375,
279935,
491519,
524287,
546874,
590489,
705893,
1048575,
1948616,
1959551,
2228223,
2359295,
3124999,
4718591,
5764800,
6377291,
9961471,
10485759,
13436927,
14680063,
17578124,
20726198,
20971519,
44040191,
46118407,
46137343,
66961565,
90699263,
92274687,
97656249,
134217727,
192937983,
201326591,
215233604,
344373767,
363182462,
402653183,
537109374,
604661759,
688747535,
838860799,
872415231,
1207959551,
1744830463,
2195382770,
2824752489,
2929687499,
3486784400,
3623878655,
3758096383,
3990767615,
6973568801,
7516192767,
8999999999,
10737418239,
15569256447,
15869140624,
16106127359,
21750594172,
22082967872,
26121388031,
32212254719,
34867844009,
66571993087,
68719476735,
69735688019,
85449218749,
94489280511,
99999999999,
137438953471,
166095446411,
169789022207,
219667417262,
259374246009,
283467841535,
292057776127,
345191655698,
457763671874,
584115552255,
690383311397,
824633720831,
1097098297343,
1099999999999,
1202590842879,
1236950581247,
1259557135290,
2165293113020,
2441406249999,
2473901162495,
3138428376720,
3389154437771,
5085241278463,
5222680231935,
6778308875543,
7052774768639,
7146825580543,
8173092077567,
9495123019885,
10445360463871,
11999999999999,
12969970703124,
21182215236074,
21440476741631,
21990232555519,
33044255768276,
37661140520651,
43980465111039,
45137758519295,
61572651155455,
66088511536553,
68664550781249,
71213422649144,
90159953477631,
92358976733183,
106993205379071,
129999999999999,
184717953466367,
205891132094648,
279577021469771,
287753210560511,
320275094369453,
362396240234374,
378231999954943,
387028092977151,
448795257871102,
527765581332479,
531726889113615,
640550188738907,
774056185954303.
Distribution of the remainders when the numbers in this family are divided by n=2, 3,..., 11. (I took into account 159 values, from 1 to 9.99⋅1030107).
n\r | 0 | 1 |
2 | 0 | 100000 | 2 |
3 | 33333 | 33334 | 33333 | 3 |
4 | 0 | 1 | 0 | 99999 | 4 |
5 | 20000 | 20000 | 20000 | 20000 | 20000 | 5 |
6 | 0 | 33334 | 0 | 33333 | 0 | 33333 | 6 |
7 | 14286 | 14286 | 14285 | 14286 | 14286 | 14286 | 14285 | 7 |
8 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 99999 | 8 |
9 | 11111 | 11111 | 11110 | 11110 | 11112 | 11112 | 11112 | 11111 | 11111 | 9 |
10 | 0 | 20000 | 0 | 20000 | 0 | 20000 | 0 | 20000 | 0 | 20000 | 10 |
11 | 9090 | 9093 | 9090 | 9090 | 9091 | 9091 | 9090 | 9091 | 9091 | 9093 | 9090 |
A pictorial representation of the table above
Imagine to divide the members of this family by a number n and compute the remainders. Should they be uniformly distributed, each remainder from 0 to n-1 would be obtained in about (1/n)-th of the cases. This outcome is represented by a white square. Reddish (resp. bluish) squares represent remainders which appear more (resp. less) frequently than 1/n.