166520

Appears in sequences

• Triangle, read by rows, where row n equals the coefficients of y^k in R_{n-1}(y+y^2) for k=1..n where R_n(y) is the n-th row polynomial in y for n>1 with R_1(y)=y.at n=51A187005
• Total runs-resistance of all binary vectors of length n.at n=14A319415