Intersection of A002378 and A135013.

Terms

a(0) =2a(1) =6a(2) =342a(3) =8372a(4) =15006a(5) =32942a(6) =45156a(7) =170982a(8) =369056a(9) =3008490a(10) =3954132a(11) =644931420a(12) =2009953056a(13) =12824996256