32413

Properties

Appears in sequences

• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 13.at n=29A031601
• Primes expressible as the sum of 3 consecutive palindromic primes.at n=12A046493
• Primes which can be represented as the sum of a prime and its reverse.at n=21A072385
• Primes in A003154.at n=34A083577
• Apocalypse primes: 10^665+a(n) has 666 decimal digits and is prime.at n=18A115983
• Primes of the form k^2 + 13.at n=29A138375
• Primes p such that continued fraction of (1 + sqrt(p))/2 has period 17 : primes in A146340.at n=35A146362
• Primes p containing the string "13" and sum of digits sod(p) = 13.at n=27A175017
• a(n) = (2*n^3 + 3*n^2 + n + 3)/3.at n=36A188475
• Primes of the form 2*n^2+30*n+13.at n=14A243889
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 43", based on the 5-celled von Neumann neighborhood.at n=36A269878
• Numbers k such that 6*k + 1 is a prime that can be written as p*q + 2, with p and q being consecutive primes.at n=17A342564
• a(n) is the number of distinct scalar products which can be formed by pairs of signed permutations (V, W) of [n].at n=36A358655
• a(n) = floor(n!*(3*floor(n/2)!*ceiling(n/2)! + 3*floor((n+2)/2)!*ceiling((n-2)/2)! - 6*floor(n/2)!*ceiling((n-2)/2)!)^(-1)).at n=17A366109
• Prime numbersat n=3479