-4057

Appears in sequences

• Expansion of 1/(1-x+2*x^2+2*x^3).at n=15A077956
• Triangle in which row n consists of the coefficients in Sum_{m=0..n} x^m * Product_{k=m+1..n} (1-k*x), as read by rows.at n=39A248925
• a(n) = n - 2^(sum of digits of n).at n=39A328882