69066domain: NAppears in sequencesTriangle T(n,k) = 1 -A002627(k) -A002627(n-k) +A002627(n), read by rows.at n=39A176305Triangle T(n,k) = 1 -A002627(k) -A002627(n-k) +A002627(n), read by rows.at n=41A176305Cyclops numbers with circular digits {0,6,8,9}.at n=28A274765