A371683 - cp's OEIS frontend

A371683 a(n) = Sum_{k=0..n} (-2)^(3k)binomial(2n, 2k)Euler(2k, 1/2). Row sums of A371637.

n	a(n)
0	1
1	3
2	33
3	819
4	37281
5	2720643
6	291107457
7	42945429747
8	8354465297601
9	2072193715976067
10	638269648981638753
11	239021193599722872627
12	106946291677392350660961
13	56346809266835212819000323
14	34528790475992735166895973313
15	24349545528533035663737512791539

[1, 3, 33, 819, 37281, 2720643, 291107457, 42945429747, 8354465297601, 2072193715976067, 638269648981638753, 239021193599722872627, 106946291677392350660961, 56346809266835212819000323, 34528790475992735166895973313, 24349545528533035663737512791539]

cp's OEIS Frontend

A371683 a(n) = Sum_{k=0..n} (-2)^(3k)binomial(2n, 2k)Euler(2k, 1/2). Row sums of A371637.

Table of values

List of values

cp's OEIS Frontend

A371683 a(n) = Sum_{k=0..n} (-2)^(3*k)*binomial(2*n, 2*k)*Euler(2*k, 1/2). Row sums of A371637.

Table of values

List of values

A371683 a(n) = Sum_{k=0..n} (-2)^(3k)binomial(2n, 2k)Euler(2k, 1/2). Row sums of A371637.