1073741839
domain: N
Appears in sequences
- Primes of the form 4^k + k.at n=3A129963
- a(n) = 2^n + ceiling(n/2).at n=30A134522
- Primes of the form 2^k + 15.at n=15A144487
- a(n) = 4^n + n.at n=15A158879
- Semi-sums (average) of two (not necessarily distinct) Mersenne primes (A000668).at n=30A169628
- Semi-sums (average) of any two distinct Mersenne primes (A000668).at n=23A171253
- Primes which are the average of any two (not necessarily distinct) Mersenne primes (A000668).at n=22A171254
- Primes which are the average of two distinct Mersenne primes (A000668).at n=15A171255
- Primes of the form 4^k + 15.at n=9A237418
- Primes of the form m = 4^i + 4^j - 1, where i > j >= 0.at n=34A239714
- Numbers n > 1 such that 2^(n-1) and (2*n-m)*2^(((n-1)/2) - floor(log_2(n))) are congruent to 1 (mod n) for at least one of m = 3, m = 7 and m = 15.at n=22A295196