38997

Appears in sequences

• Numbers n such that sigma(2*phi(n)) = 2*sigma(n).at n=19A137733
• A transform of the double factorial numbers A001147.at n=12A165433
• Expansion of Product_{k>=1} 1/((1+x^k)*(1-x^k)^4).at n=14A262380
• Positive integers k at which k/log_2(k) is at a record closeness to an integer, without actually being an integer.at n=10A307099
• Number of ways to partition digits 0-9 into signed terms in decreasing absolute value order with sum n.at n=3A389952