Sum_{mu a partition of n} (f^mu/n!)^{-2} where f^mu is the number of standard Young tableaux of shape mu.
A026845
Sum_{mu a partition of n} (f^mu/n!)^{-2} where f^mu is the number of standard Young tableaux of shape mu.
Terms
- a(0) =1a(1) =8a(2) =81a(3) =1424a(4) =32152a(5) =1144937a(6) =53178768a(7) =3360267976a(8) =268737034880
External references
- oeis: A026845