# A059439 (b-file synthesized from sequence entry) 0 0 1 0 2 1 3 2 4 7 5 32 6 177 7 1142 8 8411 9 69692 10 642581 11 6534978 12 72754927 13 880877928 14 11530686953 15 162331760494 16 2446380427331 17 39300220067668 18 670480457586813 19 12106985274788506 20 230691361507912471 21 4625811718758963136