# A016226 (b-file synthesized from sequence entry) 0 1 1 16 2 197 3 2252 4 25113 5 277608 6 3059149 7 33672484 8 370484705 9 4075681280 10 44833892181 11 493178406396 12 5424984839977 13 59674922718232 14 656424507814493 15 7220671017615188 16 79427386920390129 17 873701279030783664