29611

Properties

Appears in sequences

• Numbers k such that 13*2^k - 1 is prime.at n=12A001773
• Expansion of 1/((1-3x)*(1-7x)*(1-9x)).at n=4A017998
• Primes that remain prime through 3 iterations of function f(x) = 5x + 8.at n=36A023286
• Smallest prime with "n^2" as central digit(s).at n=31A038370
• Smallest odd prime p such that n = (p - 1) / ord_p(2).at n=20A101208
• Centered triangular numbers that are prime.at n=32A125602
• Centered 47-gonal numbers.at n=35A129428
• Prime numbers p such that p +- ((p-1)/5) are primes.at n=24A137714
• Sequence starting with 2 such that the sum of any two distinct terms is a semiprime having two distinct prime factors.at n=6A181620
• Primes p of the form m^2 + 27.at n=25A227622
• Number of arrays of median of three adjacent elements of some length-5 0..n array, with no adjacent equal elements in the latter.at n=29A229013
• Quadruple Hex-primes: let f(n) = A102489(n); then sequence lists primes p such that f(p), f(f(p)). f(f(f(p))) and f(f(f(f(p)))) are also primes.at n=20A237440
• Number of partitions of n such that (number parts having multiplicity 1) is not a part and (number of 1s) is not a part.at n=47A241509
• Expansion of Product_{k>=1} (1 + x^k) / (1 - x^(3*k)).at n=47A285445
• Truncated hex numbers: a(n) = 24*n^2 + 6*n + 1.at n=35A381424
• Prime numbersat n=3214