823536

Appears in sequences

• a(n) = 7^n - n.at n=7A024076
• a(n) = n^n - n.at n=7A061190
• a(n) = prime(n)^prime(n)-prime(n).at n=3A101339
• a(n) = n^7 - n.at n=7A133499
• Jordan function ratio J_6(n)/J_2(n).at n=27A194532
• Number of 7-ary sequences with primitive period n.at n=7A218124
• Number of endofunctions on [n] such that no element has a preimage of cardinality seven.at n=7A245411
• Number of length n primitive (=aperiodic or period n) n-ary words.at n=6A252764
• a(n) is the number of endofunctions on a set of size n with preimage constraint {0, 1, 2, 3, 4, 5, 6}.at n=7A324806
• G.f. A(x) satisfies: A(x) = 1 + x * A(x^3/(1 - x)^3) / (1 - x)^3.at n=18A354695