97061

Appears in sequences

• Triangle read by rows: T(n,k) is the number of isomorphism classes of commutative semigroups of order n with k idempotents.at n=28A058116
• Odd numbers n for which the number of iterations to reach the largest equals number of iterations to reach 1 from the largest in Collatz (3x+1) trajectory of n.at n=31A224533
• Number of dominating sets in the n-pan graph.at n=17A303005
• a(n) is the least triprime k such that k + n is the next triprime after k.at n=32A366673