A002125 - cp's OEIS frontend

A002125 a(n) = Sum_{k=0..n} f(k)*f(n-k) where f(k) = A002124(k).

n	a(n)
0	1
1	0
2	0
3	2
4	0
5	2
6	3
7	2
8	6
9	4
10	9
11	14
12	11
13	26
14	29
15	34
16	62
17	68
18	99
19	140
20	169
21	252
22	322
23	430
24	607
25	764
26	1059
27	1424
28	1845
29	2546
30	3344
31	4442
32	6002
33	7876
34	10575
35	14058
36	18575
37	24878
38	32842
39	43630
40	58073
41	76658
42	101913
43	134964
44	178468
45	236776
46	312874
47	414094
48	547947
49	723646

[1, 0, 0, 2, 0, 2, 3, 2, 6, 4, 9, 14, 11, 26, 29, 34, 62, 68, 99, 140, 169, 252, 322, 430, 607, 764, 1059, 1424, 1845, 2546, 3344, 4442, 6002, 7876, 10575, 14058, 18575, 24878, 32842, 43630, 58073, 76658, 101913, 134964, 178468, 236776, 312874, 414094, 547947, 723646]

cp's OEIS Frontend

A002125 a(n) = Sum_{k=0..n} f(k)*f(n-k) where f(k) = A002124(k).

Table of values

List of values