191474domain: NAppears in sequencesNumber of (n+2)X(5+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00010101 00101011 or 01010101.at n=7A260924Number of Dyck paths of semilength n such that each positive level up to the highest nonempty level has at least one peak.at n=13A287901