A112320 - cp's OEIS frontend

A112320 Coefficient of x^n in the (n+1)-th iteration of (x + x^2) for n>=1.

n	a(n)
1	1
2	3
3	12
4	70
5	560
6	5810
7	74760
8	1153740
9	20817588
10	430604724
11	10052947476
12	261595087182
13	7509722346204
14	235808741944100
15	8040824716606176
16	295914258931377276
17	11690732617035570008
18	493527339623630078552

[1, 3, 12, 70, 560, 5810, 74760, 1153740, 20817588, 430604724, 10052947476, 261595087182, 7509722346204, 235808741944100, 8040824716606176, 295914258931377276, 11690732617035570008, 493527339623630078552]

cp's OEIS Frontend

A112320 Coefficient of x^n in the (n+1)-th iteration of (x + x^2) for n>=1.

Table of values

List of values