68391

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 47 ones.at n=13A031815
• Numbers n such that P(11*n) is prime where P(n) is the partition number.at n=36A113499
• Integers n of the form 8k+7 that are sum of distinct squares of the form m, m+1, m+2, m+4, where m == 1 (mod 4).at n=32A243578
• a(n) is the smallest positive integer which can be represented as the sum of n distinct nonzero tetrahedral numbers in exactly n ways, or -1 if no such integer exists.at n=31A360217