A linear combination of A008292 and A130595: t(n,m)=2*A008292(n,m)- A130595(n,m).

Terms

a(0) =1a(1) =1a(2) =3a(3) =1a(4) =10a(5) =1a(6) =1a(7) =25a(8) =19a(9) =3a(10) =1a(11) =56a(12) =126a(13) =56a(14) =1a(15) =1a(16) =119a(17) =594a(18) =614a(19) =109a(20) =3a(21) =1a(22) =246a(23) =2367a(24) =4852a(25) =2367a(26) =246a(27) =1a(28) =1a(29) =501