196699

Properties

Appears in sequences

• Ninth prime p such that (p+n)^2+n is prime but (p+j)^2+j is not prime for all 0<j<n.at n=34A238681
• Primes p of the form p^2 + q + 1 where p < q are consecutive primes.at n=11A242230
• Number of nX4 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.at n=4A299063
• Number of nX5 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.at n=3A299064
• T(n,k) = Number of n X k 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.at n=31A299067
• T(n,k) = Number of n X k 0..1 arrays with every element equal to 1, 2, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero.at n=32A299067
• a(n) = Sum_{k=0..floor(n/3)} binomial(2*n-4*k,n-3*k).at n=10A360151
• Prime numbersat n=17712