89614

Appears in sequences

• L.g.f.: log( Sum_{n>=0} A000108(n)^2*x^n ) = Sum_{n>=1} a(n)*x^n/n, where A000108(n) = binomial(2*n,n)/(n+1) forms the Catalan numbers.at n=5A213515
• Number of nX4 0..1 arrays with every element equal to 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.at n=23A298179
• Starts of runs of 3 consecutive Lucas-Niven numbers (A351714).at n=20A351716