189898domain: NAppears in sequencesa(1)=1, a(2)=3, a(3)=8; for n>=4, a(n) = 10*a(n-3) + 8 (if a(n-3) is odd) or + 9 (if a(n-3) is even).at n=15A117713Number of uniquely solveable n X m nonograms (hanjie), read by antidiagonals.at n=48A384764Number of uniquely solveable n X m nonograms (hanjie), read by antidiagonals.at n=51A384764