A304980 - cp's OEIS frontend

A304980 a(n) = 4^n * (1 - 4^n) * Bernoulli(2n) / (2n) + EulerE(2*n).

n	a(n)
1	-2
2	7
3	-77
4	1657
5	-58457
6	3056557
7	-221729237
8	21295269457
9	-2614745018417
10	399460073350357
11	-74300372446261997
12	16529958050063939257
13	-4333993989483331875977
14	1322511243007573825356157
15	-464663077436832702395156357
16	186233354336664458732835601057

[-2, 7, -77, 1657, -58457, 3056557, -221729237, 21295269457, -2614745018417, 399460073350357, -74300372446261997, 16529958050063939257, -4333993989483331875977, 1322511243007573825356157, -464663077436832702395156357, 186233354336664458732835601057]

cp's OEIS Frontend

A304980 a(n) = 4^n * (1 - 4^n) * Bernoulli(2n) / (2n) + EulerE(2*n).

Table of values

List of values

cp's OEIS Frontend

A304980 a(n) = 4^n * (1 - 4^n) * Bernoulli(2*n) / (2*n) + EulerE(2*n).

Table of values

List of values

A304980 a(n) = 4^n * (1 - 4^n) * Bernoulli(2n) / (2n) + EulerE(2*n).