A225845 - cp's OEIS frontend

A225845 Numerator of c(n) = 2^(2n)(2^(2n) - 1)/(2n)!, a coefficient used in the expansion of tan(x) as Sum_{n>=1} c(n)|Bernoulli(2n)|x^(2n-1).

n	a(n)
0	0
1	6
2	10
3	28
4	34
5	1364
6	52
7	43688
8	8738
9	5548
10	5084
11	11184808
12	964
13	178956968
14	143165576
15	24790576
16	33686018
17	22906492244
18	1177636
19	733007751848
20	10115684
21	79783156664
22	407934748856
23	375299968947536
24	16173237188
25	8804691353608
26	2401919801264264

[0, 6, 10, 28, 34, 1364, 52, 43688, 8738, 5548, 5084, 11184808, 964, 178956968, 143165576, 24790576, 33686018, 22906492244, 1177636, 733007751848, 10115684, 79783156664, 407934748856, 375299968947536, 16173237188, 8804691353608, 2401919801264264]

cp's OEIS Frontend

A225845 Numerator of c(n) = 2^(2n)(2^(2n) - 1)/(2n)!, a coefficient used in the expansion of tan(x) as Sum_{n>=1} c(n)|Bernoulli(2n)|x^(2n-1).

Table of values

List of values

cp's OEIS Frontend

A225845 Numerator of c(n) = 2^(2*n)*(2^(2*n) - 1)/(2*n)!, a coefficient used in the expansion of tan(x) as Sum_{n>=1} c(n)*|Bernoulli(2*n)|*x^(2*n-1).

Table of values

List of values

A225845 Numerator of c(n) = 2^(2n)(2^(2n) - 1)/(2n)!, a coefficient used in the expansion of tan(x) as Sum_{n>=1} c(n)|Bernoulli(2n)|x^(2n-1).