23677

Properties

Appears in sequences

• Number of triangular partitions of n of order 3.at n=35A084439
• Primes that are a concatenation of 2, 3 and a prime.at n=22A101218
• Home primes whose homeliness is 4.at n=29A133962
• Mersenne numbers with digits sorted in increasing order and zeros suppressed.at n=14A135374
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, 0, 0), (0, 1, 1), (1, -1, 0), (1, 0, -1)}.at n=9A148969
• Primes p such that p+p^2+p^3-+2 are also prime.at n=37A154821
• Primes p such that 8*p^2-2*p-1 divides Fibonacci(p).at n=21A159231
• Primes with eight embedded primes.at n=20A179916
• Primes of the form p*q - 30, where p and q are consecutive primes.at n=18A229613
• a(n) = numerator of (1/n^3)*(-1/(n+1) + 16/(n+2) + 3/(4*(2*n+1)) - 81/(4*(2*n+3))), term of a BBP-type series representation of zeta(3) by V. Adamchik and S. Wagon.at n=20A256323
• Primes p such that 2*p + 1 is abundant.at n=27A267476
• G.f. A(x) satisfies: A( A(x)^2 - A(x)^4 ) = x*A(x) + x*A(x)^2.at n=13A272819
• Trajectory of 397 under the map A340008: n -> n/2 if n is even, n-> n^2 - 1 if n is an odd prime, otherwise n -> n - 1.at n=18A340419
• After initial 0, numbers k such that A327860(k) is a multiple of k.at n=52A351087
• a(0) = 397; a(n+1) = a(n)^2 if a(n) is prime, floor(a(n)/2) otherwise.at n=15A376801
• Prime numbersat n=2635