A001896 - cp's OEIS frontend

A001896 Numerators of cosecant numbers -2(2^(2n - 1) - 1)Bernoulli(2n); also of Bernoulli(2n, 1/2) and Bernoulli(2n, 1/4).

n	a(n)
0	1
1	-1
2	7
3	-31
4	127
5	-2555
6	1414477
7	-57337
8	118518239
9	-5749691557
10	91546277357
11	-1792042792463
12	1982765468311237
13	-286994504449393
14	3187598676787461083
15	-4625594554880206790555
16	16555640865486520478399
17	-22142170099387402072897

[1, -1, 7, -31, 127, -2555, 1414477, -57337, 118518239, -5749691557, 91546277357, -1792042792463, 1982765468311237, -286994504449393, 3187598676787461083, -4625594554880206790555, 16555640865486520478399, -22142170099387402072897]

cp's OEIS Frontend

A001896 Numerators of cosecant numbers -2(2^(2n - 1) - 1)Bernoulli(2n); also of Bernoulli(2n, 1/2) and Bernoulli(2n, 1/4).

Table of values

List of values

cp's OEIS Frontend

A001896 Numerators of cosecant numbers -2*(2^(2*n - 1) - 1)*Bernoulli(2*n); also of Bernoulli(2*n, 1/2) and Bernoulli(2*n, 1/4).

Table of values

List of values

A001896 Numerators of cosecant numbers -2(2^(2n - 1) - 1)Bernoulli(2n); also of Bernoulli(2n, 1/2) and Bernoulli(2n, 1/4).