26387

Properties

Appears in sequences

• a(n) = a(1) + a(2) + ... + a(n-1) + a(m) for n >= 4, where m = 2*n - 3 - 2^(p+1) and p is the unique integer such that 2^p < n - 1 <= 2^(p+1), starting with a(1) = 1, a(2) = 3, and a(3) = 4.at n=14A049976
• Primes p such that their cubes are pandigital.at n=27A124629
• Expansion of 1/(x^5 - 2*x^4 + x^3 - 2*x^2 + x - 1).at n=40A129704
• Number of affine subspaces of GF(2)^n.at n=6A182176
• A weighted sum over the rooted trees of n nodes (A214568).at n=10A262253
• Primes p such that A001175(p) = 2*(p+1)/9.at n=19A308786
• Discriminants of imaginary quadratic fields with class number 35 (negated).at n=34A351673
• Numbers k such that (29^k - 2^k)/27 is prime.at n=6A376470
• Prime numbersat n=2898