G.f. satisfies: a(2*n) equals coefficient of x^n in A(x)^(n+1) and a(2*n+1) equals coefficient of x^(n+1) in A(x)^(n+1), for n>=0, with a(0)=1.
A094600
G.f. satisfies: a(2*n) equals coefficient of x^n in A(x)^(n+1) and a(2*n+1) equals coefficient of x^(n+1) in A(x)^(n+1), for n>=0, with a(0)=1.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =5a(4) =9a(5) =28a(6) =48a(7) =145a(8) =250a(9) =831a(10) =1404a(11) =4664a(12) =7875a(13) =26748a(14) =44960a(15) =154265a(16) =258777a(17) =896644a(18) =1501060a(19) =5239975a(20) =8758640a(21) =30760060a(22) =51350784a(23) =181258264a(24) =302271736a(25) =1071490551a(26) =1785262500a(27) =6351444132a(28) =10574365725a(29) =37738804488
External references
- oeis: A094600