56213

Appears in sequences

• 1 + Sum_{n>=1} a_n x^n = 1/Product_{n>=1} (1+x^n)^prime(n).at n=44A061151
• Radii of the circles around (0,0) that contain record numbers of lattice points, rounded up to the next integer.at n=22A071384
• In lunar arithmetic in base 2, the number of divisors of the number 11...1101 (n digits, the binary expansion of 2^n-3).at n=22A188288
• In base-2 lunar arithmetic, out of all odd numbers of length n, it appears that 111..1 (with n ones) has the most lunar divisors; the sequence gives the number of lunar divisors of the runner-up.at n=19A188524