27754

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 14.at n=14A031602
• 2-nadirs of sigma: numbers k such that sigma(k-2) > sigma(k-1) > sigma(k) < sigma(k+1) < sigma(k+2).at n=1A076774
• Number of unlabeled alternating octopuses with n black nodes and n white nodes.at n=9A091468
• Number of partitions of n such that the least part occurs exactly three times.at n=50A097091
• Number of partitions of n in which each odd part has odd multiplicity.at n=44A131942
• a(n) = 841*n + 1.at n=32A158404
• Total number of positive integers below 10^n requiring 4 positive biquadrates in their representation as sum of biquadrates.at n=5A186653
• Indices of primes in the 9th-order Fibonacci number sequence, A251749.at n=7A255532