a(n) = 24*n*p(n) = 24*n*A000041(n).

Terms

a(0) =24a(1) =96a(2) =216a(3) =480a(4) =840a(5) =1584a(6) =2520a(7) =4224a(8) =6480a(9) =10080a(10) =14784a(11) =22176a(12) =31512a(13) =45360a(14) =63360a(15) =88704a(16) =121176a(17) =166320a(18) =223440a(19) =300960a(20) =399168a(21) =529056a(22) =692760a(23) =907200a(24) =1174800a(25) =1520064a(26) =1950480a(27) =2498496a(28) =3177240a(29) =4034880