47878

Appears in sequences

• Numbers k such that 229*2^k+1 is prime.at n=17A032491
• Triangle T(n,m) (read as T(1,1); T(2,1), T(2,2); T(3,1), T(3,2), T(3,3);) Number of distinct non-recursive Catalan Automorphisms whose minimum clause-representation requires examination of n nodes in total, divided into m non-default clauses.at n=16A089831
• n*(n^2-2*n-1).at n=36A214446
• Number of possible prime patterns for centuries having exactly n primes.at n=4A261571
• a(1)=1, a(2)=6; for n > 2, a(n) is the smallest unused positive number such that gcd(a(n-1)+n, a(n)) > 1, gcd(a(n-1), a(n)) > 1, and gcd(n, a(n)) > 1.at n=36A349492