A123008 - cp's OEIS frontend

A123008 Expansion of x(1 + 3x)/(1 - 2x - 25x^2).

n	a(n)
1	1
2	5
3	35
4	195
5	1265
6	7405
7	46435
8	277995
9	1716865
10	10383605
11	63688835
12	386967795
13	2366156465
14	14406507805
15	87966927235
16	536096549595
17	3271366280065
18	19945146300005
19	121674449601635
20	741977556703395
21	4525816353447665

[1, 5, 35, 195, 1265, 7405, 46435, 277995, 1716865, 10383605, 63688835, 386967795, 2366156465, 14406507805, 87966927235, 536096549595, 3271366280065, 19945146300005, 121674449601635, 741977556703395, 4525816353447665]

cp's OEIS Frontend

A123008 Expansion of x(1 + 3x)/(1 - 2x - 25x^2).

Table of values

List of values

cp's OEIS Frontend

A123008 Expansion of x*(1 + 3*x)/(1 - 2*x - 25*x^2).

Table of values

List of values

A123008 Expansion of x(1 + 3x)/(1 - 2x - 25x^2).