43932

Appears in sequences

• Expansion of 1/((1-x) * (1-4*x) * (1-7*x)).at n=5A016223
• Split positive integers into extending even groups and sum: 1+2, 3+4+5+6, 7+8+9+10+11+12, 13+14+15+16+17+18+19+20, ...at n=28A061317
• Galton triangle T(n, k) = T(n-1, k-1) + (3k-2)*T(n-1, k) read by rows.at n=30A111577
• Numbers n such that n^2 + 1 can be expressed as j^2 + k^2, j > k > 1, in more ways than for any smaller n.at n=12A300161