30931

Properties

Appears in sequences

• Sum of (Gaussian) q-binomial coefficients for q=-14.at n=4A015180
• Sixth term of weak prime sextet: p(m-4)-p(m-5) < p(m-3)-p(m-4) < p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1).at n=10A054833
• Number of ways to place zero or more nonadjacent 0,0 1,0 1,1 2,0 2,2 3,0 3,1 3,2 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155360
• a(0)=2, a(1)=3, a(2)=5, a(n) = smallest prime greater than or equal to a(n-1) + a(n-2) + a(n-3).at n=16A155954
• a(0)=113, then a(n) = smallest prime p not already used such that the first three digits of p = the last three digits of a(n-1).at n=40A175687
• Number of 4-step S, E, and NW-moving king's tours on an n X n board summed over all starting positions.at n=39A187509
• The successive approximations up to 2^n for the 2-adic integer 3^(1/5).at n=15A325892
• First of three consecutive primes p,q,r such that r^2-p^2+p, r^2-p^2+q and r^2-p^2+r are consecutive primes.at n=32A347531
• Prime numbersat n=3334