223308

Appears in sequences

• Number of arrangements of n+2 nonzero numbers x(i) in -2..2 with the sum of x(i)*x(i+1) equal to zero.at n=8A188242
• p-INVERT of (1,1,1,1,1,...), where p(S) = (1 - S^3)^3.at n=16A291143