74131

Properties

Appears in sequences

• Value of an urn with n balls of type -1 and n balls of type +1.at n=9A003127
• Primes of form 210*p + 1 where p is a prime.at n=35A051648
• Primes of the form n^3 + n + 1.at n=17A095692
• Numerators of values T(m,m) of urn game described in A108885 and A108886.at n=9A108883
• 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, 1), (0, 0, 1), (0, 1, 1), (1, 0, -1)}.at n=9A150116
• Primes of the form p + (p-1)^3, where p is also prime.at n=6A165946
• G.f.: (1-5*x+3*x^2+x^3)/(1-7*x+10*x^2+x^3-x^4).at n=8A232971
• Primes that are reached by an ever increasing aliquot sequence.at n=29A234842
• Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 774", based on the 5-celled von Neumann neighborhood.at n=45A290238
• a(n) is the least prime of the form n^k+n+1 with k>1, or 0 if there is no such prime.at n=41A346154
• a(n) = n! * Sum_{k=0..floor(n/2)} (n - 2*k)^(2*k)/(n - 2*k)!.at n=7A357146
• Prime numbersat n=7312