(n-1)-st elementary symmetric function of the first n terms of (1,2,3,4,1,2,3,4,1,2,3,4,...) = A010883.
A203163
(n-1)-st elementary symmetric function of the first n terms of (1,2,3,4,1,2,3,4,1,2,3,4,...) = A010883.
Terms
- a(0) =1a(1) =3a(2) =11a(3) =50a(4) =74a(5) =172a(6) =564a(7) =2400a(8) =2976a(9) =6528a(10) =20736a(11) =86400a(12) =100224a(13) =214272a(14) =670464a(15) =2764800a(16) =3096576a(17) =6524928a(18) =20238336a(19) =82944000a(20) =90906624a(21) =189775872a(22) =585252864a(23) =2388787200a(24) =2579890176a(25) =5350883328a(26) =16434855936a(27) =66886041600
External references
- oeis: A203163