75319

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 75 ones.at n=3A031843
• Central coefficients of Moebius polynomials (A074586): coefficient of x^(n/2-1/2) if n is odd; coefficient of x^(n/2-1) if n is even and >4. The n-th Moebius polynomial, M(n,x), satisfies M(n,-1)=mu(n) the Moebius function of n.at n=17A077596
• p[n_, k_]=Product[(E/(2-E))^i, {i, 1, n}]/Product[(E/(2-E))^i, {i, Floor[n/2^k], n}], a(n) = Sum[Floor[p[n, k]/(8*p[n-1, k])], {k, 1, 8}].at n=20A088663
• Triangle read by rows related to double factorial of odd numbers (A001147).at n=29A230696