a(n) = Pell(n)*A132973(n) for n>=1, with a(0)=1, where A132973 lists the coefficients in psi(-q)^3/psi(-q^3) and where psi() is a Ramanujan theta function.
A209450
a(n) = Pell(n)*A132973(n) for n>=1, with a(0)=1, where A132973 lists the coefficients in psi(-q)^3/psi(-q^3) and where psi() is a Ramanujan theta function.
Terms
- a(0) =1a(1) =-3a(2) =6a(3) =-15a(4) =36a(5) =0a(6) =210a(7) =-1014a(8) =1224a(9) =-2955a(10) =0a(11) =0a(12) =41580a(13) =-200766a(14) =484692a(15) =0a(16) =1412496a(17) =0a(18) =8232630a(19) =-39750654a(20) =0a(21) =-231683790a(22) =0a(23) =0a(24) =1630019160a(25) =-3935214363a(26) =19000895772a(27) =-22936110135a(28) =110745336312a(29) =0
External references
- oeis: A209450