22817

Properties

Appears in sequences

• a(0) = 1, a(n) = 15*n^2 + 2 for n>0.at n=39A010005
• "CFK" (necklace, size, unlabeled) transform of 2,1,1,1...at n=32A032140
• Prime(n) and prime(n+4) use the same digits.at n=21A069796
• Primes which remain prime after one and after two applications of the rotate-and-add operation of A086002.at n=15A086003
• Primes p such that the p-1 digits of the ternary (base 3) expansion of k/p (for k=1,2,3,...,p-1) fit into the k-th row of a magic square grid of order p-1.at n=7A096660
• prime(k) for those k where floor((2*(prime(k+1)-prime(k))*PrimePi(k) mod (8*k))/k) = m with m = 10.at n=27A109564
• Numbers appearing in A122072 at least four times.at n=13A122390
• Primes p such that q-p = 36, where q is the next prime after p.at n=7A134117
• K-bit primes p such that p-2^i and p+2^i are composite for 0<=i<=K-1.at n=15A153352
• Primes of the form 43*n^2 + 3*n + 1.at n=36A185658
• Constant term in the reduction of the polynomial (2*x+1)^n by x^3 -> x^2 + x + 1. See Comments.at n=8A192814
• Primes of the form k^3 + (k+1)^3 + 2.at n=9A227412
• Least prime of the form prime(n)^2 + k^2, or 0 if none.at n=35A240130
• Primes of the form n^2 + 16.at n=27A243451
• Odd numbers m that are neither of the form p + 2^k nor of the form p - 2^k with 2^k < m, k >= 1, and p prime.at n=31A255967
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 3", based on the 5-celled von Neumann neighborhood.at n=32A269912
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 347", based on the 5-celled von Neumann neighborhood.at n=32A271299
• Primes of the form p^2 + 16 where p is prime.at n=8A321890
• Primes p_1 where products m of k = 5 consecutive primes p_1..p_k are such that only p_1 < m^(1/k).at n=28A376136
• Prime numbersat n=2550