A279881 - cp's OEIS frontend

A279881 a(n) = A168467(n) * Sum_{k=0..n}(2^k(k!)^2 / (2k+1)!).

n	a(n)
0	1
1	8
2	1056
3	5529600
4	2040024268800
5	82038030902231040000
6	512596445591262883479552000000
7	671373457257855830831011844849664000000000
8	238977230623673235057124486022413812190150656000000000000

[1, 8, 1056, 5529600, 2040024268800, 82038030902231040000, 512596445591262883479552000000, 671373457257855830831011844849664000000000, 238977230623673235057124486022413812190150656000000000000]

cp's OEIS Frontend

A279881 a(n) = A168467(n) * Sum_{k=0..n}(2^k(k!)^2 / (2k+1)!).

Table of values

List of values

cp's OEIS Frontend

A279881 a(n) = A168467(n) * Sum_{k=0..n}(2^k*(k!)^2 / (2*k+1)!).

Table of values

List of values

A279881 a(n) = A168467(n) * Sum_{k=0..n}(2^k(k!)^2 / (2k+1)!).