A156360 - cp's OEIS frontend

A156360 G.f.: A(x) = exp( Sum_{n>=1} sigma_n(2n)x^n/n ), where sigma_n(2n) is the sum of the n-th powers of the divisors of 2n.

n	a(n)
0	1
1	3
2	15
3	120
4	1450
5	25383
6	591563
7	17156364
8	595635903
9	24023004840
10	1102221504614
11	56652798990909
12	3222918574782830
13	200989079661549750
14	13632214370613131094
15	998992560620311541814
16	78653794343072884416393

[1, 3, 15, 120, 1450, 25383, 591563, 17156364, 595635903, 24023004840, 1102221504614, 56652798990909, 3222918574782830, 200989079661549750, 13632214370613131094, 998992560620311541814, 78653794343072884416393]

cp's OEIS Frontend

A156360 G.f.: A(x) = exp( Sum_{n>=1} sigma_n(2n)x^n/n ), where sigma_n(2n) is the sum of the n-th powers of the divisors of 2n.

Table of values

List of values

cp's OEIS Frontend

A156360 G.f.: A(x) = exp( Sum_{n>=1} sigma_n(2n)*x^n/n ), where sigma_n(2n) is the sum of the n-th powers of the divisors of 2*n.

Table of values

List of values

A156360 G.f.: A(x) = exp( Sum_{n>=1} sigma_n(2n)x^n/n ), where sigma_n(2n) is the sum of the n-th powers of the divisors of 2n.