20483

Properties

Appears in sequences

• Numerators of b(n) = (1/16^n)*(4/(8*n+1) - 2/(8*n+4) - 1/(8*n+5) - 1/(8*n+6)).at n=22A048581
• Primes p such that x^49 = 2 has no solution mod p, but x^7 = 2 has a solution mod p.at n=6A059667
• Primes of the form 5*2^k + 3.at n=8A068712
• Primes that can be formed by concatenating 2^a and 3^b.at n=31A068801
• Smallest prime larger than 2^n whose digits begin with those of 2^n.at n=11A068842
• Primes which are also prime if their base 64 representation is interpreted as a base 10 number.at n=38A090717
• Primes p such that q-p = 24, where q is the next prime after p.at n=34A098974
• Primes from merging of 5 successive digits in decimal expansion of (Pi^2).at n=21A104928
• The length of Sapro's necklace at successive years in Werneck's Black Pearl Necklace problem.at n=22A140261
• Primes congruent to 10 mod 59.at n=39A142737
• Primes congruent to 48 mod 61.at n=39A142846
• Centered heptagonal prime numbers.at n=20A144974
• Primes p such that the multiplicative order of 2 modulo p is (p-1)/7.at n=22A152307
• Triangle read by rows in which row n lists n+1 terms, starting with n, such that the difference between successive terms is equal to n^4 - 1.at n=41A162622
• Triangle read by rows in which row n lists n terms, starting with n, such that the difference between successive terms is equal to n^4 - 1 = A123865(n).at n=33A162623
• Triangle read by rows in which row n lists n terms, starting with n^4 + n - 1, such that the difference between successive terms is equal to n^4 - 1 = A123865(n).at n=32A162624
• a(n) = 20*n^2 + 3.at n=31A167573
• a(n) = A186882(n+1) - A186882(n).at n=31A186883
• Expansion of (1+x-14*x^2+13*x^3)/(1-28*x^2+169*x^4).at n=7A199710
• Primes of the form 5n^3+3.at n=4A201173