Maximal number of zeros in a column of the character table of the symmetric group S_n.

Terms

a(0) =0a(1) =0a(2) =1a(3) =2a(4) =3a(5) =6a(6) =9a(7) =15a(8) =22a(9) =33a(10) =46a(11) =66a(12) =89a(13) =122a(14) =162a(15) =216a(16) =281a(17) =368a(18) =472a(19) =608a(20) =772a(21) =981a(22) =1233a(23) =1552a(24) =1934a(25) =2411a(26) =2984a(27) =3691a(28) =4537a(29) =5575