32117

Properties

Appears in sequences

• Primes that remain prime through 3 iterations of function f(x) = 2x + 3.at n=38A023273
• Primes that remain prime through 4 iterations of function f(x) = 2x + 3.at n=13A023303
• a(n) = A047980(2n).at n=33A047981
• Number of toothpicks after n stages of 3-D toothpick structure defined in Comments.at n=35A170876
• Let u, v be binary vectors of length n, let f(u,v) be length of longest carry propagation when we form the binary sum u+v; then a(n) = Sum_{u,v} f(u,v).at n=7A192054
• Least n-gap prime: a(n) = least prime p for which there is no prime between n*p and n*q, where q is the next prime after p.at n=25A195325
• Records of A195325.at n=12A195329
• Primes formed by concatenation (exponent then prime) of prime factorizations of the positive integers.at n=29A226095
• Primes p such that p+2, p+24 and p+246 are also primes.at n=32A235871
• Positive integers n such that prime(n+i) is a primitive root modulo prime(n+j) for any distinct i and j among 0, 1, 2, 3.at n=4A243839
• Initial members of prime quadruples (n, n+2, n+24, n+26).at n=27A245568
• Primes p such that 2*prime(p) + 1 = prime(q) for some prime q.at n=31A261361
• Primes that can be generated by the concatenation in base 6, in ascending order, of two consecutive integers read in base 10.at n=18A287306
• Number of strict odd-length integer partitions of 2n.at n=39A344650
• Lesser of twin primes (A001359) being both half-period primes (A097443).at n=32A347225
• Lesser twin primes p such that 4*p is the sum of two consecutive primes.at n=30A350736
• Prime numbersat n=3446