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iccanobiF numbers
iccanobiF numbers are defined in a way similar to Fibonacci numbers, but the two previous terms are reversed before being added.

The sequence is thus obtained in this way, 1, 1, 1+1=2, 1+2=3, 2+3=5, 3+5=8, 5+8=13, 8+31=39, 31+93=124, and so on.

The first iccanobiF numbers are 1, 1, 2, 3, 5, 8, 13, 39, 124, 514, 836, 1053, 4139, 12815, 61135, 104937, 792517, 1454698, 9679838 more terms

IccanobiF numbers can also be... (you may click on names or numbers)

a-pointer 13 aban 13 39 124 514 836 abundant 836 17354310 admirable 836 alternating 836 amenable 13 124 836 1053 104937 792517 265429972 apocalyptic 836 12815 arithmetic 13 39 836 4139 12815 61135 104937 792517 1454698 9679838 c.square 13 c.triangular 514 Chen 13 4139 congruent 13 39 124 514 1053 12815 61135 792517 9679838 constructible 514 Cunningham 124 Curzon 9679838 cyclic 13 4139 61135 792517 D-number 39 de Polignac 792517 deficient 13 39 124 514 1053 4139 12815 61135 104937 792517 1454698 9679838 dig.balanced 12815 792517 Duffinian 39 1053 12815 61135 792517 economical 13 1053 4139 emirp 13 emirpimes 39 514 792517 equidigital 13 1053 4139 evil 39 514 836 61135 104937 792517 1454698 17354310 94367798 641840787 Fibonacci 13 gapful 1053 17354310 21807674140 happy 13 836 1454698 Harshad 1053 Hogben 13 iban 124 idoneal 13 inconsummate 1053 interprime 39 12815 61135 junction 12815 lucky 13 1053 104937 Lynch-Bell 124 metadrome 13 39 124 modest 13 39 836 nude 124 oban 13 39 836 odious 13 124 1053 4139 12815 9679838 265429972 522619163 panconsummate 39 pernicious 13 124 514 1053 4139 12815 Perrin 39 Pierpont 13 plaindrome 13 39 124 prim.abundant 836 prime 13 4139 9291169663 primeval 13 Proth 13 repunit 13 self 514 semiprime 39 514 61135 792517 sphenic 12815 star 13 super-d 1053 104937 1454698 tribonacci 13 truncatable prime 13 twin 13 uban 13 39 Ulam 13 792517 unprimeable 514 12815 61135 9679838 untouchable 124 836 wasteful 39 124 514 836 12815 61135 104937 792517 1454698 9679838 weak prime 13 4139 weird 836 Zumkeller 836