Number of columns in the character table of the symmetric group S_n that have zero sum.

Terms

a(0) =0a(1) =1a(2) =1a(3) =2a(4) =3a(5) =6a(6) =8a(7) =12a(8) =17a(9) =26a(10) =35a(11) =49a(12) =66a(13) =92a(14) =121a(15) =161a(16) =211a(17) =280a(18) =360a(19) =466a(20) =596a(21) =766a(22) =968a(23) =1225a(24) =1538a(25) =1935a(26) =2408a(27) =2996a(28) =3707a(29) =4588