68910

Appears in sequences

• Number of binary [ n,3 ] codes without 0 columns.at n=40A034344
• Triangle T, read by rows, where column k of T = column 0 of matrix power T^(k+1) for k>0, with column 0 of T = column 1 of T^2 (shifted).at n=49A152406
• Number of -n..n arrays x(0..4) of 5 elements with zero sum and no element more than one greater than the previous.at n=26A199849