41039

Properties

Appears in sequences

• Powers of fifth root of 5 rounded down.at n=33A018126
• Powers of fifth root of 5 rounded to nearest integer.at n=33A018127
• a(1) = 2; a(n+1) is the smallest prime > a(n) which differs from it in every digit.at n=34A068853
• Trisection of A007294.at n=44A073472
• Primes from merging of 5 successive digits in decimal expansion of exp(Pi).at n=14A105010
• a(1) = 1; for n>1, a(n) = the smallest number p > a(n-1) such that (a(n-1)+p)/2 is a cube.at n=33A126950
• Primes with a twin Carmichael number: primes p such that p-2 or p+2 are Carmichael numbers.at n=6A135437
• Triangle read by rows: (A000012 * A136572 + A136572 * A000012) - A000012.at n=42A136573
• Number of proper divisors of n!.at n=20A153823
• Triangle read by rows: T(n,k) = 1 + n! - k! - (n - k)! + k!*(n - k)!.at n=38A155453
• Triangle read by rows: T(n,k) = 1 + n! - k! - (n - k)! + k!*(n - k)!.at n=42A155453
• Depression-type primes with five digits; from left to right digits decrease to and increase from the central digit.at n=22A157083
• Number of permutations of 1..n containing the relative rank sequence { 1634527 } at any spacing.at n=3A159180
• Consecutive pairs of prime point sums in A161191 (includes triples).at n=27A161192
• Primes of the form p + (p^2 - 1)/8, where p is also prime.at n=24A165352
• Primes obtained from other primes by prefixing a 4.at n=36A165444
• Primes of the form (p^2 - 1)/8 - p, where p is also a prime.at n=24A165567
• Primes p such that 3*p+4, 5*p+6 and 7*p+8 are also prime.at n=36A173879
• Lower Beatty array of sqrt(3).at n=36A182787
• Lesser of pseudo twin primes to base 2.at n=26A192297