72589

Appears in sequences

• a(1) = a(2) = a(3) = 1; for n>2, a(n+1) = a(n) + a(n-1) + a(n-2) iff a(n) is prime, otherwise a(n+1) = a(n) + 1.at n=40A113058
• The indexing sequence for successively better golden semiprimes.at n=21A165569
• Number of nX2 0..7 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.at n=23A201095
• Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than 3.at n=7A204208
• T(n,k) = Number of length n+1 nonnegative integer arrays starting and ending with 0 with adjacent elements differing by no more than k.at n=52A204213