1046368
domain: N
Appears in sequences
- Number of walks within N^2 (the first quadrant of Z^2) starting at (0,0), ending on the vertical axis and consisting of n steps taken from {(-1, 0), (0, 1), (1, -1), (1, 0)}.at n=14A151408
- Number of length n arrays of permutations of 0..n-1 with each element moved by -4 to 4 places and with no two consecutive increases or two consecutive decreases.at n=16A263662