A185524 - cp's OEIS frontend

A185524 a(n) equals the coefficient of x^n in the (n+1)-th iteration of x*(1+x)/(1-x) for n>=1.

n	a(n)
1	1
2	6
3	56
4	770
5	14272
6	335846
7	9623280
8	325812162
9	12743851808
10	565954103110
11	28147009533480
12	1550288951887650
13	93697417382512608
14	6166356881177224390
15	439006462312153564128
16	33620884878446290152706
17	2756259421284677015952320

[1, 6, 56, 770, 14272, 335846, 9623280, 325812162, 12743851808, 565954103110, 28147009533480, 1550288951887650, 93697417382512608, 6166356881177224390, 439006462312153564128, 33620884878446290152706, 2756259421284677015952320]

cp's OEIS Frontend

A185524 a(n) equals the coefficient of x^n in the (n+1)-th iteration of x*(1+x)/(1-x) for n>=1.

Table of values

List of values