41251

Appears in sequences

• Numbers k such that the period of the continued fraction for sqrt(k) contains exactly 33 ones.at n=7A031801
• Least pentagonal number P(m) > P(n) such that P(m)+P(n) is again a pentagonal number, 0 if no such m exists.at n=25A136114
• a(n) = 66*n^2 + 1.at n=25A158689
• Pentagonal numbers which are products of three distinct primes.at n=40A381650