Constant term in the expansion of (1 + w^2 + x^2 + y^2 + z^2 + 1/(w*x*y*z))^n.
A361704
Constant term in the expansion of (1 + w^2 + x^2 + y^2 + z^2 + 1/(w*x*y*z))^n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =1a(6) =361a(7) =2521a(8) =10081a(9) =30241a(10) =75601a(11) =166321a(12) =1580041a(13) =16833961a(14) =114594481a(15) =569368801a(16) =2273150881a(17) =7723366561a(18) =30024671041a(19) =193227592321
External references
- oeis: A361704