A069993 - cp's OEIS frontend

A069993 a(n) = 2^(2n+1)Sum_{k=1..2n} binomial(2n+1,k)*Bernoulli(k)/2^k.

n	a(n)
1	5
2	27
3	121
4	503
5	2037
6	8179
7	32753
8	131055
9	524269
10	2097131
11	8388585
12	33554407
13	134217701
14	536870883
15	2147483617
16	8589934559
17	34359738333
18	137438953435
19	549755813849
20	2199023255511
21	8796093022165
22	35184372088787

[5, 27, 121, 503, 2037, 8179, 32753, 131055, 524269, 2097131, 8388585, 33554407, 134217701, 536870883, 2147483617, 8589934559, 34359738333, 137438953435, 549755813849, 2199023255511, 8796093022165, 35184372088787]

cp's OEIS Frontend

A069993 a(n) = 2^(2n+1)Sum_{k=1..2n} binomial(2n+1,k)*Bernoulli(k)/2^k.

Table of values

List of values

cp's OEIS Frontend

A069993 a(n) = 2^(2n+1)*Sum_{k=1..2*n} binomial(2n+1,k)*Bernoulli(k)/2^k.

Table of values

List of values

A069993 a(n) = 2^(2n+1)Sum_{k=1..2n} binomial(2n+1,k)*Bernoulli(k)/2^k.