A181410 - cp's OEIS frontend

A181410 G.f.: exp( Sum_{n>=1} A181411(n)x^n/n ) where A181411(n) = Sum_{k=0..n} C(n,k)sigma(n+k).

n	a(n)
0	1
1	4
2	17
3	65
4	234
5	804
6	2664
7	8571
8	26908
9	82721
10	249758
11	742178
12	2174623
13	6291982
14	17998815
15	50957814
16	142913510
17	397339309
18	1095887091
19	3000130003
20	8156568197
21	22032636494
22	59155443318
23	157925193036
24	419353166885
25	1107924552070

[1, 4, 17, 65, 234, 804, 2664, 8571, 26908, 82721, 249758, 742178, 2174623, 6291982, 17998815, 50957814, 142913510, 397339309, 1095887091, 3000130003, 8156568197, 22032636494, 59155443318, 157925193036, 419353166885, 1107924552070]

cp's OEIS Frontend

A181410 G.f.: exp( Sum_{n>=1} A181411(n)x^n/n ) where A181411(n) = Sum_{k=0..n} C(n,k)sigma(n+k).

Table of values

List of values

cp's OEIS Frontend

A181410 G.f.: exp( Sum_{n>=1} A181411(n)*x^n/n ) where A181411(n) = Sum_{k=0..n} C(n,k)*sigma(n+k).

Table of values

List of values

A181410 G.f.: exp( Sum_{n>=1} A181411(n)x^n/n ) where A181411(n) = Sum_{k=0..n} C(n,k)sigma(n+k).