# A024245 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 151 4 4052 5 473821 6 43427702 7 8101954771 8 1565046469352 9 448462238638201 10 145356930860495402 11 60733588252657064911 12 29246431560267761883452 13 16962897050271422096601301