1207361
domain: N
Appears in sequences
- Sarrus numbers that become prime when two is added.at n=22A137198
- Overpseudoprimes to base 2: composite k such that k = A137576((k-1)/2).at n=28A141232
- Increasing gaps between 2-pseudoprimes (lower end).at n=19A175736
- Lesser of overpseudo-twin-primes to base 2 defined in Comment.at n=7A195468
- Intersection of A001567 and A212502.at n=26A212601
- Composite numbers k such that k divides Fibonacci(k+1) or Fibonacci(k-1) and 2^(k-1) == 1 (mod k).at n=18A214434
- Pseudoprimes to a twin prime criterion of Aebi and Cairns.at n=23A224695
- Strong pseudoprimes (base 2) that become prime when two is added.at n=3A230484
- Strong pseudoprimes k to base 2 such that either k-2 or k+2 is prime.at n=14A230487
- Fermat pseudoprimes to base 2 that are tetradecagonal.at n=7A322123