Denominator of the second derivative of the n-th Bernoulli polynomial B(n,x).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =1a(7) =3a(8) =1a(9) =1a(10) =1a(11) =1a(12) =1a(13) =15a(14) =1a(15) =1a(16) =3a(17) =5a(18) =5a(19) =21a(20) =1a(21) =5a(22) =15a(23) =5a(24) =1a(25) =21a(26) =7a(27) =1a(28) =1a(29) =1