21491081domain: NAppears in sequencesNumerator of |Bernoulli(2n+2)| - |Bernoulli(2n)|.at n=10A029764Numerators of column 3 of table described in A051714/A051715.at n=20A051720Numerators of the inverse binomial transform of Bernoulli(n+2).at n=20A256671