8696754

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*11^j.at n=26A038301
• Triangle whose (i,j)-th entry is binomial(i,j)*11^(i-j)*9^j.at n=22A038323
• Number of permutations of [n] avoiding {1234, 1324, 2341}.at n=14A294823
• a(n) is the least positive integer k which is a multiple of prime(n) such that for some m >= 0, psi(k) = rad(k)^m, where psi(k) = A001615(k) and rad(k) = A007947(k).at n=4A355045
• Integers k such that for some m >= 0, psi(k) = rad(k)^m, where psi(k) = A001615(k) and rad(k) = A007947(k).at n=12A356420
• Nonprimes k such that sopfr(k) = rad(k), where sopfr(k) is sum of the prime factors of k (counting multiplicity), and rad(k) is the product of its distinct prime factors.at n=28A386916