Constant term in the expansion of (1 + w + x + y + z + 1/(w*x*y*z))^n.
A361703
Constant term in the expansion of (1 + w + x + y + z + 1/(w*x*y*z))^n.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =121a(6) =721a(7) =2521a(8) =6721a(9) =15121a(10) =143641a(11) =1302841a(12) =7579441a(13) =32586841a(14) =113753641a(15) =509068561a(16) =3599319361a(17) =25076993761a(18) =142188273361a(19) =662296228561
External references
- oeis: A361703