33128

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has even period and if the last term of the periodic part is deleted the central term is 91.at n=30A031589
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 91.at n=1A031769
• Numbers n such that the sum of the prime factors of n equals the product of the digits of n.at n=35A067173
• Smallest of 5 consecutive integers divisible respectively by 5 consecutive primes.at n=17A072730
• Two-column table read by rows: Primitive distinct pairs that have the same value of phi, sigma, and tau.at n=41A322688
• Number of regions in a "frame" of size n X n (see Comments for definition).at n=13A331776