A352901 - cp's OEIS frontend

A352901 a(0) = 1; a(n) = Sum_{k=0..floor(n/3)} binomial(n+1,3k+1) a(k).

n	a(n)
0	1
1	2
2	3
3	6
4	15
5	36
6	80
7	172
8	369
9	796
10	1727
11	3774
12	8322
13	18528
14	41643
15	94460
16	216121
17	498186
18	1155147
19	2689626
20	6278841
21	14676900
22	34316598
23	80194032
24	187195554
25	436310190
26	1015176726
27	2357708258
28	5465611759
29	12647864454
30	29219750157
31	67403414568
32	155276809533

[1, 2, 3, 6, 15, 36, 80, 172, 369, 796, 1727, 3774, 8322, 18528, 41643, 94460, 216121, 498186, 1155147, 2689626, 6278841, 14676900, 34316598, 80194032, 187195554, 436310190, 1015176726, 2357708258, 5465611759, 12647864454, 29219750157, 67403414568, 155276809533]

cp's OEIS Frontend

A352901 a(0) = 1; a(n) = Sum_{k=0..floor(n/3)} binomial(n+1,3k+1) a(k).

Table of values

List of values

cp's OEIS Frontend

A352901 a(0) = 1; a(n) = Sum_{k=0..floor(n/3)} binomial(n+1,3*k+1) * a(k).

Table of values

List of values

A352901 a(0) = 1; a(n) = Sum_{k=0..floor(n/3)} binomial(n+1,3k+1) a(k).