A352429 - cp's OEIS frontend

A352429 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4k+1) a(n-4*k-1).

n	a(n)
0	1
1	1
2	2
3	6
4	24
5	121
6	732
7	5166
8	41664
9	378001
10	3810512
11	42253926
12	511139904
13	6698457481
14	94535404992
15	1429477706286
16	23056267551744
17	395120495014561
18	7169579673404672
19	137321623511274246
20	2768602189953629184
21	58609968225266985241
22	1299827736206335767552
23	30137364376923272989806

[1, 1, 2, 6, 24, 121, 732, 5166, 41664, 378001, 3810512, 42253926, 511139904, 6698457481, 94535404992, 1429477706286, 23056267551744, 395120495014561, 7169579673404672, 137321623511274246, 2768602189953629184, 58609968225266985241, 1299827736206335767552, 30137364376923272989806]

cp's OEIS Frontend

A352429 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4k+1) a(n-4*k-1).

Table of values

List of values

cp's OEIS Frontend

A352429 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4*k+1) * a(n-4*k-1).

Table of values

List of values

A352429 a(0) = 1; a(n) = Sum_{k=0..floor((n-1)/4)} binomial(n,4k+1) a(n-4*k-1).