26371

Properties

Appears in sequences

• Number of bipartite partitions.at n=19A002766
• Primes in which the unit place digit is 1 and the k-th most significant digit is prime (2,3,5,7) if k is prime else is composite (4,6,8,9,0).at n=37A089704
• Numbers of the form prime(prime(prime(k))) with a digit sum which is prime.at n=37A162252
• Primes p such that p*floor(p/2)-2 and p*floor(p/2)+2 are also prime numbers.at n=34A164621
• Primes p such that p*floor(p/2) - 4 and p*floor(p/2) + 4 are prime numbers.at n=32A164622
• Augmentation of the triangle A011973. See Comments.at n=35A193607
• Primes p such that four consecutive primes starting with p are congruent to {1,2,3,4} (mod 5).at n=35A215607
• A255277(2^n-1).at n=7A255278
• Main diagonal of Unlucky array: a(n) = A255543(n,n).at n=28A255549
• Total length of all longest runs of 1's in multus bitstrings of length n.at n=15A333395
• a(n) = A115004(n) - A334701(n).at n=24A335179
• Expansion of e.g.f. sinh( (exp(3*x) - 1)/3 ).at n=7A356572
• Smallest prime factor q of (2^(p-1)-1) / (3*p) with prime p such that q is greater than p (increasing p, cf. A359387).at n=18A359650
• Prime numbersat n=2897