-4023

Appears in sequences

• Expansion of (1 - x)/(1 + x - 2*x^2 + x^3).at n=11A078039
• G.f.: 1/(1+x+x^3).at n=23A199804
• Triangle T(n,k), n>=1, 0<=k<=n^2, read by rows: row n gives the coefficients of the chromatic polynomial of the square diagonal grid graph DG_(n,n), highest powers first.at n=14A212208
• Values of n such that L(7) and N(7) are both prime, where L(k) = (n^2+n+1)*2^(2*k) + (2*n+1)*2^k + 1, N(k) = (n^2+n+1)*2^k + n.at n=50A226927