A304207 - cp's OEIS frontend

A304207 a(1)=17; for n>1, a(n) = (a(n-1)^2 - 1)/2 if n is even, a(n-1) + 1 if n is odd.

n	a(n)
1	17
2	144
3	145
4	10512
5	10513
6	55261584
7	55261585
8	1526921388356112
9	1526921388356113
10	1165744463109679828308252234384
11	1165744463109679828308252234385
12	679480076635437837059150531810555804350472205781672488164112
13	679480076635437837059150531810555804350472205781672488164113

[17, 144, 145, 10512, 10513, 55261584, 55261585, 1526921388356112, 1526921388356113, 1165744463109679828308252234384, 1165744463109679828308252234385, 679480076635437837059150531810555804350472205781672488164112, 679480076635437837059150531810555804350472205781672488164113]

cp's OEIS Frontend

A304207 a(1)=17; for n>1, a(n) = (a(n-1)^2 - 1)/2 if n is even, a(n-1) + 1 if n is odd.

Table of values

List of values