A257605 - cp's OEIS frontend

A257605 Expansion of g.f.: exp( Sum_{n>=1} A251661(n)x^n/n ) where A251661(n) = Sum_{k=0..n} C(n, k) (2^k + 3^k)^(n-k).

n	a(n)
0	1
1	3
2	12
3	68
4	606
5	9438
6	271154
7	14272266
8	1350900204
9	226478780848
10	67039275113982
11	34862320055916606
12	31905434621918041764
13	51191148619374796495296
14	144350180842362122992451022
15	712487785268333349746955065478
16	6171550949441004942637166827656834

[1, 3, 12, 68, 606, 9438, 271154, 14272266, 1350900204, 226478780848, 67039275113982, 34862320055916606, 31905434621918041764, 51191148619374796495296, 144350180842362122992451022, 712487785268333349746955065478, 6171550949441004942637166827656834]

cp's OEIS Frontend

A257605 Expansion of g.f.: exp( Sum_{n>=1} A251661(n)x^n/n ) where A251661(n) = Sum_{k=0..n} C(n, k) (2^k + 3^k)^(n-k).

Table of values

List of values

cp's OEIS Frontend

A257605 Expansion of g.f.: exp( Sum_{n>=1} A251661(n)*x^n/n ) where A251661(n) = Sum_{k=0..n} C(n, k) * (2^k + 3^k)^(n-k).

Table of values

List of values

A257605 Expansion of g.f.: exp( Sum_{n>=1} A251661(n)x^n/n ) where A251661(n) = Sum_{k=0..n} C(n, k) (2^k + 3^k)^(n-k).