A112319 - cp's OEIS frontend

A112319 Coefficients of x^n in the (n-1)-th iteration of (x + x^2) for n>=1.

n	a(n)
1	1
2	1
3	2
4	9
5	64
6	630
7	7916
8	121023
9	2179556
10	45179508
11	1059312264
12	27715541568
13	800423573676
14	25289923553700
15	867723362137464
16	32128443862364255
17	1276818947065793736
18	54208515369076658640
19	2448636361058495090816
20	117254071399557173396416

[1, 1, 2, 9, 64, 630, 7916, 121023, 2179556, 45179508, 1059312264, 27715541568, 800423573676, 25289923553700, 867723362137464, 32128443862364255, 1276818947065793736, 54208515369076658640, 2448636361058495090816, 117254071399557173396416]

cp's OEIS Frontend

A112319 Coefficients of x^n in the (n-1)-th iteration of (x + x^2) for n>=1.

Table of values

List of values