A155209 - cp's OEIS frontend

A155209 G.f.: A(x) = exp( Sum_{n>=1} (4^n - 1)^n * x^n/n ), a power series in x with integer coefficients.

n	a(n)
0	1
1	3
2	117
3	83691
4	1057319541
5	224085796087563
6	785909534807110163445
7	45253898808490419883694669835
8	42530103981310660908750359650219091445
9	649533982980850199063905669772208004250784346635

[1, 3, 117, 83691, 1057319541, 224085796087563, 785909534807110163445, 45253898808490419883694669835, 42530103981310660908750359650219091445, 649533982980850199063905669772208004250784346635]

cp's OEIS Frontend

A155209 G.f.: A(x) = exp( Sum_{n>=1} (4^n - 1)^n * x^n/n ), a power series in x with integer coefficients.

Table of values

List of values