164430

Appears in sequences

• a(n) = n*(n+1)*(n+2)*(n+3)/4.at n=27A033487
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={-1,0,1}.at n=25A079985
• Number of n X 3 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=26A207363
• Number of positive integers with n digits whose digit sum is equal to its digit product.at n=29A297815
• Primitive terms of A051487.at n=41A346694
• Multiplicative orders of 2+-i modulo p == 3 (mod 4) that are congruent to 2 modulo 4.at n=5A385218
• Number of nonisomorphic semigroups with n elements satisfying the equation xyz = xy.at n=10A390163