A025277 - cp's OEIS frontend

A025277 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 0,0,1,1.

n	a(n)
1	0
2	0
3	1
4	1
5	0
6	1
7	2
8	1
9	2
10	6
11	6
12	7
13	20
14	30
15	34
16	75
17	140
18	182
19	322
20	644
21	972
22	1554
23	3024
24	5091
25	8052
26	14784
27	26378
28	43032
29	75504
30	136994
31	232232
32	399399
33	720356
34	1257256
35	2161874
36	3852576
37	6831552
38	11858418
39	20949304
40	37350768

[0, 0, 1, 1, 0, 1, 2, 1, 2, 6, 6, 7, 20, 30, 34, 75, 140, 182, 322, 644, 972, 1554, 3024, 5091, 8052, 14784, 26378, 43032, 75504, 136994, 232232, 399399, 720356, 1257256, 2161874, 3852576, 6831552, 11858418, 20949304, 37350768]

cp's OEIS Frontend

A025277 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 0,0,1,1.

Table of values

List of values

cp's OEIS Frontend

A025277 a(n) = a(1)*a(n-1) + a(2)*a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 0,0,1,1.

Table of values

List of values

A025277 a(n) = a(1)a(n-1) + a(2)a(n-2) + ...+ a(n-1)*a(1) for n >= 5, with initial values 0,0,1,1.