The size of the largest antichain in the 7-dimensional hypercubic lattice of size n; also the coefficient of x^floor(7*(n-1)/2) in (1 + x + ... + x^(n-1))^7.
A133458
The size of the largest antichain in the 7-dimensional hypercubic lattice of size n; also the coefficient of x^floor(7*(n-1)/2) in (1 + x + ... + x^(n-1))^7.
Terms
- a(0) =1a(1) =35a(2) =393a(3) =2128a(4) =8135a(5) =24017a(6) =60691a(7) =134512a(8) =273127a(9) =512365a(10) =908755a(11) =1528688a(12) =2473325a(13) =3852919a(14) =5832765a(15) =8582336a(16) =12354469a(17) =17395119a(18) =24072133a(19) =32726960a(20) =43874139a(21) =57971221a(22) =75715487a(23) =97702640a(24) =124853275a(25) =157924585a(26) =198105727
External references
- oeis: A133458