844200

Appears in sequences

• Number of nX7 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 1 0 and 1 1 1 vertically.at n=8A208500
• Expansion of e.g.f. (1/x) * Series_Reversion( x*(1 + x*log(1-x))^2 ).at n=7A376385