173343
domain: N
Appears in sequences
- a(n)=number of Catalan knight paths in right half-plane from (0,0) to (n,2).at n=15A096611
- Number of 2 X n 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.at n=10A240285