Denominators of poly-Bernoulli numbers B_n^(k) with k=3.

A027646

Denominators of poly-Bernoulli numbers B_n^(k) with k=3.

Terms

    a(0) =1a(1) =8a(2) =216a(3) =288a(4) =54000a(5) =7200a(6) =3704400a(7) =35280a(8) =7938000a(9) =16800a(10) =78262800a(11) =304920a(13) =535392a(14) =32464832400a(15) =240240a(17) =2082880800a(19) =387017631

External references