61470

Appears in sequences

• a(n) = a(n-1) + a(n-2) + n + 2 with n>1, a(0)=a(1)=0.at n=20A210730
• Number of n X 7 0..1 arrays with every element equal to 1, 3, 5, 7 or 8 king-move adjacent elements, with upper left element zero.at n=19A298923