78607

Properties

Appears in sequences

• Triangle read by rows of numbers of permutations eliminating just card k out of n in game of Mousetrap.at n=49A028306
• Fourth term of weak prime sextet: p(m-2)-p(m-3) < p(m-1)-p(m-2) < p(m)-p(m-1) < p(m+1)-p(m) < p(m+2)-p(m+1).at n=27A054831
• Primes of the form p^k - p^(k-1) - 1, with p prime and k>1.at n=34A122395
• Pyramid game person numbers that have integer solutions.at n=49A135051
• a(n) = 68*n^2 - 1.at n=33A158730
• Primes of the form 2*k^3-1.at n=9A177105
• Least m > 0 such that gcd(m^(2n+1)+2, (m+1)^(2n+1)+2) > 1.at n=5A255832
• Least k > 0 such that gcd(k^n+2, (k+1)^n+2) > 1, or 0 if there is no such k.at n=13A255852
• Primes of the form 2^r * 17^s - 1.at n=10A292890
• Primes that are the first in a run of exactly 4 emirps.at n=25A346024
• Prime numbersat n=7714