70772438609
domain: N
Appears in sequences
- Numbers k such that 7*k^2 = floor(k*sqrt(7)*ceiling(k*sqrt(7))).at n=18A084069
- The general form of the recurrences are the a(j), b(j) and n(j) solutions of the 2-equation problem 7*n(j) + 1 = a(j)*a(j) and 9*n(j) + 1 = b(j)*b(j) with positive integer numbers.at n=9A159678
- Square root of floor[A055859(n)/7].at n=30A204517