A160143 - cp's OEIS frontend

A160143 a(n) = Numerator((-1)^nEuler(2n)(2n+1)/(4^(2n+1)-2^(2n+1))), where Euler(n) = A122045(n).

n	a(n)
0	1
1	3
2	25
3	427
4	12465
5	555731
6	35135945
7	2990414715
8	329655706465
9	45692713833379
10	1111113564712575
11	1595024111042171723
12	387863354088927172625
13	110350957750914345093747

[1, 3, 25, 427, 12465, 555731, 35135945, 2990414715, 329655706465, 45692713833379, 1111113564712575, 1595024111042171723, 387863354088927172625, 110350957750914345093747]

cp's OEIS Frontend

A160143 a(n) = Numerator((-1)^nEuler(2n)(2n+1)/(4^(2n+1)-2^(2n+1))), where Euler(n) = A122045(n).

Table of values

List of values

cp's OEIS Frontend

A160143 a(n) = Numerator((-1)^n*Euler(2*n)*(2*n+1)/(4^(2*n+1)-2^(2*n+1))), where Euler(n) = A122045(n).

Table of values

List of values

A160143 a(n) = Numerator((-1)^nEuler(2n)(2n+1)/(4^(2n+1)-2^(2n+1))), where Euler(n) = A122045(n).