68177

Appears in sequences

• Smallest k > 0 such that abs(S(k)P(k)-k) equals n, where S(k) is the sum and P(k) is the product of decimal digits of k or 0 if no such k exists.at n=31A114457
• Number of permutations of length n which avoid the patterns 1324, 3421, 4123.at n=14A116832
• a(n) = floor( (4/5)*( (9/4)^(n+1)-1 ) ).at n=13A361506
• G.f. satisfies A(x) = 1 + x^3*A(x)^2 / (1 - x*A(x)).at n=20A365694