1700352

Appears in sequences

• Number of strings of length n over Z_6 with trace 0 and subtrace 1.at n=9A073972
• Number of strings of length n over Z_6 with trace 0 and subtrace 4.at n=9A073975
• Number of strings of length n over Z_6 with trace 2 and subtrace 1.at n=9A073984
• Number of strings of length n over Z_6 with trace 2 and subtrace 4.at n=9A073987
• Numbers n such that n = k/d(k) has exactly 6 solutions, where d(k) = number of divisors of k.at n=8A217127
• Number of permutations i_1,...,i_n of 1,...,n with i_1 = 1 and i_n = n, and with the n adjacent sums i_1+i_2, i_2+i_3, ..., i_{n-1}+i_n, i_n+i_1 all coprime to n.at n=17A228860
• Number of permutations i_0,i_1,...,i_n of 0,1,...,n with i_0 = 0 and i_n = n, and with i_0+i_1, i_1+i_2, ..., i_{n-1}+i_n, i_n+i_0 all coprime to both n-1 and n+1.at n=16A228886
• Coefficients in expansion of E_4^3/E_6^2.at n=2A289209
• G.f. C(x) satisfies: Sum_{n>=0} (-1)^n * n * ( C(C(x)) - (-1)^n*C(C(-x)) )^n = 0.at n=8A318642
• Number of subsets of {1...n} containing no element > 1 whose prime indices all belong to the subset.at n=25A324738