478636domain: NAppears in sequencesLenny Conundrum #168: Neopet species in alphabetical order, converted to digits by the phone keypad code.at n=16A119568Number of (n+2)X(6+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00001011.at n=9A260499