26497

Properties

Appears in sequences

• Sum of composite numbers between prime p and nextprime(p) is palindromic.at n=27A054266
• Sum of composite numbers between prime p and nextprime(p) is palindromic with restriction 'p + 1 <> sum'.at n=17A054267
• Primes p such that p and p^2 have same digit sum.at n=33A058370
• Primes p such that p*(p-2) divides 3^(p-1)-1.at n=9A081764
• E.g.f.: exp(9x)/(1-9x)^(1/9).at n=4A095176
• Primes of the form 256n+129.at n=24A105130
• Prime septets of form k, k+2100, k+4200, k+6300, k+8400, k+10500, k+12600.at n=14A123107
• Mother primes of order 11.at n=34A136070
• a(n) = 46*n^2 + 1.at n=24A158632
• Smaller member of a pair (p,q) of cousin primes such that p and q are in different centuries.at n=26A160440
• Record values in A177942.at n=12A177945
• Number of partitions of n containing at least one part m-9 if m is the largest part.at n=36A212549
• Numbers k such that (11^k + 4^k)/15 is prime.at n=5A224501
• Smallest prime q such that 2*prime(n)*q^prime(n)+1 is also prime.at n=39A225403
• Primes of the form 384*k + 1.at n=22A229854
• Primes of the form 9x^2 + 6xy + 1849y^2.at n=52A244019
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 241", based on the 5-celled von Neumann neighborhood.at n=32A270990
• Primes in A301916 but not in A045318.at n=27A320481
• Odd integers k such that 3^((k-1)/2) == 1 (mod k*(k-2)).at n=4A337847
• The numbers of a square spiral with 1 in the center, lying at integer points of the right branch of the parabola y=n^2.at n=9A357281