69976

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (1, -1, 1), (1, 1, 0), (1, 1, 1)}.at n=8A150920
• Number of length n+4 0..4 arrays with no disjoint pairs in any consecutive five terms having the same sum.at n=6A247400
• Number of length 7+4 0..n arrays with no disjoint pairs in any consecutive five terms having the same sum.at n=3A247411
• T(n, k) = [x^k] n! [t^n] 1/(exp((V*(2 + 2*t + V))/(4*t))*sqrt(1 + V)) where V = W(-2*t*x) and W denotes the Lambert function. Table read by rows, T(n, k) for 0 <= k <= n.at n=20A343806