G.f.: exp( Sum_{n>=1} A113184(n^2)*x^n/n ), where A113184(n) = difference between sum of odd divisors of n and sum of even divisors of n.

A224340

G.f.: exp( Sum_{n>=1} A113184(n^2)*x^n/n ), where A113184(n) = difference between sum of odd divisors of n and sum of even divisors of n.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =7a(4) =16a(5) =30a(6) =64a(7) =120a(8) =236a(9) =434a(10) =805a(11) =1445a(12) =2614a(13) =4568a(14) =8003a(15) =13783a(16) =23616a(17) =39886a(18) =67124a(19) =111652a(20) =184862a(21) =303282a(22) =495001a(23) =801939a(24) =1292968a(25) =2070628a(26) =3300796a(27) =5232112a(28) =8256081a(29) =12961543

External references