A386379 - cp's OEIS frontend

A386379 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/5)} a(5k) a(n-1-5*k).

n	a(n)
0	1
1	1
2	1
3	1
4	1
5	1
6	2
7	3
8	4
9	5
10	6
11	13
12	21
13	30
14	40
15	51
16	114
17	190
18	280
19	385
20	506
21	1150
22	1950
23	2925
24	4095
25	5481
26	12586
27	21576
28	32736
29	46376
30	62832
31	145299
32	250971
33	383838
34	548340
35	749398
36	1741844
37	3025308
38	4654320
39	6690585
40	9203634
41	21475146
42	37456650
43	57887550

[1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 13, 21, 30, 40, 51, 114, 190, 280, 385, 506, 1150, 1950, 2925, 4095, 5481, 12586, 21576, 32736, 46376, 62832, 145299, 250971, 383838, 548340, 749398, 1741844, 3025308, 4654320, 6690585, 9203634, 21475146, 37456650, 57887550]

cp's OEIS Frontend

A386379 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/5)} a(5k) a(n-1-5*k).

Table of values

List of values

cp's OEIS Frontend

A386379 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/5)} a(5*k) * a(n-1-5*k).

Table of values

List of values

A386379 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/5)} a(5k) a(n-1-5*k).