Number of ordered pairs of partitions of n with no common parts.

Terms

a(0) =1a(1) =0a(2) =2a(3) =4a(4) =12a(5) =16a(6) =48a(7) =60a(8) =148a(9) =220a(10) =438a(11) =618a(12) =1302a(13) =1740a(14) =3216a(15) =4788a(16) =8170a(17) =11512a(18) =19862a(19) =27570a(20) =45448a(21) =64600a(22) =100808a(23) =141724a(24) =223080a(25) =307512a(26) =465736a(27) =652518a(28) =968180a(29) =1334030