# A013353 (b-file synthesized from sequence entry) 0 0 1 3 2 15 3 273 4 23055 5 1601193 6 155341095 7 24206437713 8 4645592799135 9 1094690215087833 10 324803673636221175 11 116133164181717551553 12 48989776965837082135215 13 24245825813770391843700873