73129

Appears in sequences

• a(n) = Sum_{k=0..floor(n/2)} binomial(n-k, k-1) * 3^(k-1).at n=15A099579
• Triangle, read by rows, T(n,k) = Sum_{j=1..k} binomial(n-1, j-1)*binomial(k, j - 1)*(j-1)!.at n=41A176122
• Consecutive states of the linear congruential pseudo-random number generator (421*s + 17117) mod 81000 when started at s=1.at n=24A385338