A003148 - cp's OEIS frontend

A003148 a(n+1) = a(n) + 2n(2n+1)a(n-1), with a(0) = a(1) = 1.

n	a(n)
0	1
1	1
2	7
3	27
4	321
5	2265
6	37575
7	390915
8	8281665
9	114610545
10	2946939975
11	51083368875
12	1542234996225
13	32192256321225
14	1114841223671175
15	27254953356505875
16	1064057291370698625
17	29845288035840902625
18	1296073464766972266375
19	41049997128507054562875

[1, 1, 7, 27, 321, 2265, 37575, 390915, 8281665, 114610545, 2946939975, 51083368875, 1542234996225, 32192256321225, 1114841223671175, 27254953356505875, 1064057291370698625, 29845288035840902625, 1296073464766972266375, 41049997128507054562875]

cp's OEIS Frontend

A003148 a(n+1) = a(n) + 2n(2n+1)a(n-1), with a(0) = a(1) = 1.

Table of values

List of values

cp's OEIS Frontend

A003148 a(n+1) = a(n) + 2n*(2n+1)*a(n-1), with a(0) = a(1) = 1.

Table of values

List of values

A003148 a(n+1) = a(n) + 2n(2n+1)a(n-1), with a(0) = a(1) = 1.