A001559 - cp's OEIS frontend

A001559 a(0) = 1, a(1) = 4; thereafter a(n)(2n + 10) - a(n-1)(11n + 35) + a(n-2)(8n + 2) + a(n-3)(15n + 7) + a(n-4)*(4n - 2) = 0.

n	a(n)
0	1
1	4
2	15
3	54
4	193
5	690
6	2476
7	8928
8	32358
9	117866
10	431381
11	1585842
12	5853849
13	21690378
14	80650536
15	300845232
16	1125555054
17	4222603968
18	15881652606
19	59873283372
20	226214536506
21	856431978324
22	3248562071800
23	12344168149224
24	46984664348488
25	179114048943078

[1, 4, 15, 54, 193, 690, 2476, 8928, 32358, 117866, 431381, 1585842, 5853849, 21690378, 80650536, 300845232, 1125555054, 4222603968, 15881652606, 59873283372, 226214536506, 856431978324, 3248562071800, 12344168149224, 46984664348488, 179114048943078]

cp's OEIS Frontend

A001559 a(0) = 1, a(1) = 4; thereafter a(n)(2n + 10) - a(n-1)(11n + 35) + a(n-2)(8n + 2) + a(n-3)(15n + 7) + a(n-4)*(4n - 2) = 0.

Table of values

List of values

cp's OEIS Frontend

A001559 a(0) = 1, a(1) = 4; thereafter a(n)*(2n + 10) - a(n-1)*(11n + 35) + a(n-2)*(8n + 2) + a(n-3)*(15n + 7) + a(n-4)*(4n - 2) = 0.

Table of values

List of values

A001559 a(0) = 1, a(1) = 4; thereafter a(n)(2n + 10) - a(n-1)(11n + 35) + a(n-2)(8n + 2) + a(n-3)(15n + 7) + a(n-4)*(4n - 2) = 0.