A047680 - cp's OEIS frontend

A047680 a(n) = 2^(2n-2) (2^(2n-1)-1) numerator(|Bernoulli(4*n)|/n).

n	a(n)
1	1
2	28
3	342736
4	29398976
5	22841912576
6	495449389339648
7	113828913905979392
8	4138783908783021080576
9	226044736813811127599528869888
10	35882867158508587149623987273728
11	5564179808875681941887049052192768
12	197363311803624016534960016288517315362816

[1, 28, 342736, 29398976, 22841912576, 495449389339648, 113828913905979392, 4138783908783021080576, 226044736813811127599528869888, 35882867158508587149623987273728, 5564179808875681941887049052192768, 197363311803624016534960016288517315362816]

cp's OEIS Frontend

A047680 a(n) = 2^(2n-2) (2^(2n-1)-1) numerator(|Bernoulli(4*n)|/n).

Table of values

List of values

cp's OEIS Frontend

A047680 a(n) = 2^(2*n-2) * (2^(2*n-1)-1) * numerator(|Bernoulli(4*n)|/n).

Table of values

List of values

A047680 a(n) = 2^(2n-2) (2^(2n-1)-1) numerator(|Bernoulli(4*n)|/n).