80694

Appears in sequences

• A Fielder sequence.at n=18A001642
• a(n) = s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = (Fibonacci numbers), t = (1, p(1), p(2), ...).at n=28A024460
• Number of 3 X n matrices with 3*n/2 1's (if n is even) or (3*n+1)/2 1's (if n is odd) that do not have a horizontal nor vertical nor diagonal 3-streak of 1's.at n=22A339631
• Number of final Tic-Tac-Toe positions on a (2*n) X 3 board that resulted in a tie.at n=11A339633