4134240

Appears in sequences

• Theta series of A_11 lattice.at n=10A023902
• a(n) = n! (1/C(n,0) + 1/C(n,1) + ... + 1/C(n,[ n/2 ])).at n=10A024419
• Lower triangular array called S1hat(1) related to partition number array A107106.at n=67A144351