60907

Appears in sequences

• Let r, s, t be three permutations of the set { 1, 2, 3, ..., n }; a(n) = minimal value of Sum_{i=1..n} r(i)*s(i)*t(i).at n=30A070735
• Integer averages of first n nonprime numbers for some n.at n=10A160758
• Expansion of (1+147*x+1230*x^2+1885*x^3+714*x^4+63*x^5+x^6)/(1-x)^7.at n=4A160840
• Number of (n+5)X9 0..1 matrices with each 6X6 subblock idempotent.at n=15A224573
• E.g.f. satisfies A(x) = 1 + (exp(x*A(x)) - 1)/A(x).at n=8A377326