38777

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 20.at n=8A031608
• 2^(2p-2) modulo p^3 for p=odd primes.at n=30A216160
• Semiprimes sp such that sp plus its digit sum is a perfect square.at n=32A244733
• Number of (2+1) X (n+1) 0..1 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction.at n=9A250731
• Numbers k such that k!6 + 48 is prime, where k!6 is the sextuple factorial number (A085158 ).at n=26A288450