A346668 - cp's OEIS frontend

A346668 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(8k,k) / (7k + 1).

n	a(n)
0	1
1	0
2	7
3	70
4	917
5	12922
6	192591
7	2984156
8	47594289
9	776184997
10	12884436285
11	216981375849
12	3698021707457
13	63663537870121
14	1105474964523293
15	19339098305850757
16	340519405008643561
17	6030158137055187758
18	107328892461895007043
19	1918980244360791943044
20	34450128513971163342013

[1, 0, 7, 70, 917, 12922, 192591, 2984156, 47594289, 776184997, 12884436285, 216981375849, 3698021707457, 63663537870121, 1105474964523293, 19339098305850757, 340519405008643561, 6030158137055187758, 107328892461895007043, 1918980244360791943044, 34450128513971163342013]

cp's OEIS Frontend

A346668 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(8k,k) / (7k + 1).

Table of values

List of values

cp's OEIS Frontend

A346668 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(8*k,k) / (7*k + 1).

Table of values

List of values

A346668 a(n) = Sum_{k=0..n} (-1)^(n-k) * binomial(n,k) * binomial(8k,k) / (7k + 1).