A025268 - cp's OEIS frontend

A025268 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 1,1,1,1.

n	a(n)
1	1
2	1
3	1
4	1
5	4
6	11
7	32
8	95
9	284
10	860
11	2630
12	8115
13	25242
14	79080
15	249342
16	790719
17	2520546
18	8072216
19	25961150
20	83814536
21	271538192
22	882527618
23	2876712308
24	9402284815
25	30806948110
26	101172278362
27	332965892290
28	1097990333320
29	3627433618396

[1, 1, 1, 1, 4, 11, 32, 95, 284, 860, 2630, 8115, 25242, 79080, 249342, 790719, 2520546, 8072216, 25961150, 83814536, 271538192, 882527618, 2876712308, 9402284815, 30806948110, 101172278362, 332965892290, 1097990333320, 3627433618396]

cp's OEIS Frontend

A025268 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 1,1,1,1.

Table of values

List of values

cp's OEIS Frontend

A025268 a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 1,1,1,1.

Table of values

List of values

A025268 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 1,1,1,1.