A203534 - cp's OEIS frontend

A203534 G.f.: exp( Sum_{n>=1} sigma(n)A002203(n)x^n/n ) where A002203 is the companion Pell numbers.

n	a(n)
0	1
1	2
2	11
3	38
4	156
5	516
6	1991
7	6434
8	23065
9	75132
10	255335
11	816480
12	2724245
13	8570794
14	27763807
15	87057596
16	276339126
17	855374534
18	2681503010
19	8218321006
20	25421912010
21	77383062314
22	236519199902
23	714226056554
24	2165295121179
25	6490447624984
26	19503550719297
27	58127246438024

[1, 2, 11, 38, 156, 516, 1991, 6434, 23065, 75132, 255335, 816480, 2724245, 8570794, 27763807, 87057596, 276339126, 855374534, 2681503010, 8218321006, 25421912010, 77383062314, 236519199902, 714226056554, 2165295121179, 6490447624984, 19503550719297, 58127246438024]

cp's OEIS Frontend

A203534 G.f.: exp( Sum_{n>=1} sigma(n)A002203(n)x^n/n ) where A002203 is the companion Pell numbers.

Table of values

List of values

cp's OEIS Frontend

A203534 G.f.: exp( Sum_{n>=1} sigma(n)*A002203(n)*x^n/n ) where A002203 is the companion Pell numbers.

Table of values

List of values

A203534 G.f.: exp( Sum_{n>=1} sigma(n)A002203(n)x^n/n ) where A002203 is the companion Pell numbers.