A346664 - cp's OEIS frontend

A346664 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(4k,k) / (3k + 1).

n	a(n)
0	1
1	0
2	3
3	12
4	73
5	453
6	2985
7	20373
8	142933
9	1024302
10	7466211
11	55182240
12	412586977
13	3115105321
14	23717115513
15	181884676827
16	1403719428485
17	10894049061956
18	84967420574247
19	665643698649684
20	5235570329071893
21	41328838600501830
22	327315349579739619
23	2600034901186102182

[1, 0, 3, 12, 73, 453, 2985, 20373, 142933, 1024302, 7466211, 55182240, 412586977, 3115105321, 23717115513, 181884676827, 1403719428485, 10894049061956, 84967420574247, 665643698649684, 5235570329071893, 41328838600501830, 327315349579739619, 2600034901186102182]

cp's OEIS Frontend

A346664 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(4k,k) / (3k + 1).

Table of values

List of values

cp's OEIS Frontend

A346664 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(4*k,k) / (3*k + 1).

Table of values

List of values

A346664 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(4k,k) / (3k + 1).