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pronic numbers
A number of the form n(n+1). more

The first 600 pronic numbers :

Distribution of the remainders when the numbers in this family are divided by n=2, 3,..., 11. (I took into account 31622776 values, from 2 to 999999993568952).

n\r 0  1
2316227760 2
321081850010540926 3
4158113880158113880 4
51264911063245551264911100 5
621081850010540926000 6
79035078090350790045175409035079 7
879056940790569407905694079056940 8
97027282010540926702728400702728400 9
10126491100126491110006324555000 10
1157495945749596574959600057495960287479857495960

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.