A153850 - cp's OEIS frontend

A153850 a(n) is the coefficient of x^(2*n-1) in the n-fold self-composition of G(x) = x + G(G(x))^3 = g.f. of A153851.

n	a(n)
1	1
2	2
3	27
4	594
5	17180
6	603879
7	24795645
8	1160887350
9	60940292571
10	3541938123306
11	225669592036086
12	15634133444509443
13	1169781625911185118
14	93989088711427170141
15	8069678384570571946581
16	737204558292074214218778

[1, 2, 27, 594, 17180, 603879, 24795645, 1160887350, 60940292571, 3541938123306, 225669592036086, 15634133444509443, 1169781625911185118, 93989088711427170141, 8069678384570571946581, 737204558292074214218778]

cp's OEIS Frontend

A153850 a(n) is the coefficient of x^(2*n-1) in the n-fold self-composition of G(x) = x + G(G(x))^3 = g.f. of A153851.

Table of values

List of values