31883

Properties

Appears in sequences

• "DGK" (bracelet, element, unlabeled) transform of 1,2,3,4,...at n=17A032233
• Number of factorizations with 2 levels of parentheses indexed by prime signatures. A050338(A025487).at n=44A050339
• Number of labeled n-vertex graphs without a 2-component.at n=6A093352
• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 01000-11111-01000 pattern in any orientation.at n=16A147025
• Primes p such that both p^5 - 6 and p^5 + 6 are prime.at n=12A157256
• Primes of the form (5+ a triangular number A000217).at n=28A159049
• Prime numbers p such that p^3 is an interprime = average of two successive primes.at n=41A248799
• Primes of the form 10n^2 - 90n + 163.at n=31A256376
• Let N(p,i) denote the result of applying "nextprime" i times to p; a(n) = smallest prime p such that N(p,3) - p = 2*n, or -1 if no such prime exists.at n=36A339943
• Let N(p,i) denote the result of applying "nextprime" i times to p; a(n) = smallest prime p such that N(p,4) - p = 2*n, or -1 if no such prime exists.at n=39A339944
• Least prime in a string of exactly n consecutive primes with primitive root 2, or 0 if no such prime exists.at n=6A358980
• Prime numbersat n=3425