40637

Properties

Appears in sequences

• Convolution of (F(2), F(3), F(4), ...) and A000201.at n=17A023653
• Smaller of twin prime pairs in consecutively larger seas of composite numbers.at n=30A046928
• Class 7- primes.at n=24A081426
• a(n) is the lesser term of the smallest twin prime pair such that if P=(a(n)^2+n)^2+n, then P and P+2 are also twin primes. a(n) is 0 if no such pair exists.at n=37A093245
• a(n) = prime(A096475(n)).at n=25A096476
• Primes p such that p+2, p^2 - 2p + 2, and p^2 - 2p + 4 are all prime.at n=19A101315
• Initial members of prime triples p < q < r such that r-q = n*(q-p).at n=26A181994
• Number of n X 2 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to at least one horizontal or vertical neighbor.at n=8A199584
• T(n,k)=Number of nXk 0..3 arrays with values 0..3 introduced in row major order, the number of instances of each value within one of each other, and every element equal to at least one horizontal or vertical neighbor.at n=46A199588
• Smallest prime factors for sequence A223546.at n=32A223548
• Number of Motzkin paths of length n with no level steps at height 4.at n=13A257387
• Primes of the form abs(-66n^3 + 3845n^2 - 60897n + 251831) in order of increasing nonnegative n.at n=11A272438
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 813", based on the 5-celled von Neumann neighborhood.at n=31A273640
• a(n) is the least prime p such that the second forward difference of three consecutive primes p, q and r is n = (p - 2q + r)/2.at n=26A316791
• Numbers k such that the k-th triangular number is a binary palindrome.at n=43A350988
• a(n) is the least prime p such that A234575(p, A007953(p)) is the n-th power of a prime.at n=10A357190
• Smallest prime factor of f(n) = 10^(2*n) + (10^n - 1)/9.at n=6A365928
• Prime numbersat n=4259