959469

Appears in sequences

• Number of nX3 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 0 vertically.at n=10A207421
• Expansion of (1/x) * Series_Reversion( x * (1 - x^3 * (1 + x)^3) / (1 + x) ).at n=13A389441