Triangle read by rows, denominators of Jakob Bernoulli's "Sums of Powers" triangle.

Terms

a(0) =1a(1) =2a(2) =2a(3) =3a(4) =2a(5) =6a(6) =4a(7) =2a(8) =4a(9) =5a(10) =2a(11) =3a(12) =-30a(13) =6a(14) =2a(15) =12a(16) =-12a(17) =7a(18) =2a(19) =2a(20) =-6a(21) =42a(22) =8a(23) =2a(24) =12a(25) =-24a(26) =12a(27) =9a(28) =2a(29) =3