25723

Appears in sequences

• Number of partitions of n, with three kinds of 1,2 and 3 and two kinds of 4,5,6,....at n=15A000715
• Numbers k such that 29*2^k+1 is prime.at n=26A032364
• Numbers n such that sigma(phi(n))/sigma(n) = 2.at n=38A067382
• a(n) is the smallest integer k such that the n-th (forward) difference of the partition sequence A000041 is positive from k onwards.at n=37A119712
• Expansion of psi(x^2) * phi(x^7) / (f(-x) * f(-x^7)) in powers of x where phi(), psi(), f() are Ramanujan theta functions.at n=31A193826