50548

Appears in sequences

• a(n) = a(n-1) + a(n-2) + 1 for n>1, a(0)=0, a(1)=3.at n=21A022308
• 3rd-order Vatalan numbers (generalization of Catalan numbers).at n=7A025756
• Sequence obtained from Fibonacci numbers by taking the factorials of each digit and summing.at n=37A164955
• Number of nX3 0..1 arrays with every element unequal to 0, 2, 3, 4 or 7 king-move adjacent elements, with upper left element zero.at n=10A304889