# A024294 (b-file synthesized from sequence entry) 0 0 1 1 2 10 3 259 4 13716 5 1202597 6 156277214 7 28120098599 8 6684923466280 9 2028010061105865 10 764351278731173810 11 350322324985907812811 12 191861297592547526873020 13 123738773021830120012762477