A352904 - cp's OEIS frontend

A352904 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4k+1) a(k).

n	a(n)
0	1
1	1
2	2
3	3
4	4
5	6
6	12
7	28
8	64
9	137
10	282
11	583
12	1244
13	2733
14	6062
15	13343
16	28944
17	61969
18	131602
19	278483
20	588564
21	1242646
22	2618924
23	5505556
24	11542528
25	24142217
26	50409898
27	105154719
28	219278860
29	457362189
30	954629598
31	1994940799
32	4175986720
33	8760742945
34	18428667938

[1, 1, 2, 3, 4, 6, 12, 28, 64, 137, 282, 583, 1244, 2733, 6062, 13343, 28944, 61969, 131602, 278483, 588564, 1242646, 2618924, 5505556, 11542528, 24142217, 50409898, 105154719, 219278860, 457362189, 954629598, 1994940799, 4175986720, 8760742945, 18428667938]

cp's OEIS Frontend

A352904 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4k+1) a(k).

Table of values

List of values

cp's OEIS Frontend

A352904 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4*k+1) * a(k).

Table of values

List of values

A352904 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4k+1) a(k).