61937

Appears in sequences

• Triangle of (Gaussian) q-binomial coefficients for q=-16.at n=12A015139
• Sums of squares of primitive roots of primes.at n=21A089453
• Numbers n with the property that the difference between the two largest proper divisors of n equals the sum of proper divisors of the digit sum of n.at n=10A132783
• The number of digits of (2^n)!.at n=14A244061
• Quasi-Carmichael numbers to exactly four bases.at n=1A257754
• Sequence of pairwise relatively prime numbers of class P_4 (see comment in A275246).at n=26A275248
• Semiprimes of the form p*q where p < q such that q divides p^(q+1) + 1 and (q-p)^(q+1) + 1.at n=16A278921