244623

Appears in sequences

• Odd numbers n divisible by 3 such that for all k >= 1 the numbers n*2^k - 1 and n*2^(k+1) - 1 do not form a pair of primes.at n=22A243858
• Number of n X 7 0..2 arrays with no element equal to more than one of its king-move neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.at n=8A281138