78733
domain: N
Appears in sequences
- Numbers that are the sum of 5 positive 9th powers.at n=18A003394
- Positions where A007600 increases.at n=31A007601
- Number of asymmetric 2,3 cacti (triangular cacti with bridges).at n=16A091489
- Pierpont semiprimes: semiprimes of the form (2^K)*(3^L)+1.at n=42A113432
- a(n) = 4*3^n + 1.at n=9A199108
- Number of n X 4 0..1 arrays avoiding 0 0 1 and 0 1 0 horizontally and 0 1 1 and 1 1 0 vertically.at n=7A207560
- n for which A079277(n) + phi(n) < n.at n=35A208815
- Integers expressible as x^3 + 2*y^3 (x, y > 0) in two ways.at n=19A219725
- a(1) = 2, a(n) = k + 1, where k is the least number greater than a(n-1) such that rad(k) | a(n-1), where rad(n) = A007947(n).at n=10A365324