1617173
domain: N
Appears in sequences
- Numbers n such that prime(n) == -1 (mod n).at n=20A045924
- Numbers m such that m*(prime(m)+1) is a square.at n=6A073614
- Numbers k that divide prime(k)+1 or prime(k)-1.at n=32A078931
- Numbers k such that prime(k+1) == 5 (mod k).at n=22A105329
- a(n) is the smallest number m such that prime(m) = n*m - 1, or 0 if no such m exists.at n=15A108511
- Index of the smallest prime where n consecutive leading binary digits of the index match n consecutive leading binary digits in the prime.at n=19A245520