%N Numbers whose factorial representation contains no zeros and each digit is at most one larger than the largest following digit.
%C 0 is included by considering it to have the empty string as its factorial base representation.
%H Alois P. Heinz, <a href="/A120696/b120696.txt">Rows n = 0..9, flattened</a>
%Y Cf. A000110 (row lengths), A120698, A120695, A120697, A071156.
%A _Franklin T. Adams-Watters_, Jun 28 2006