# A028096 (b-file synthesized from sequence entry) 0 1 1 31 2 620 3 10190 4 149931 5 2056881 6 26907430 7 340238680 8 4195278461 9 50745196931 10 604662792240 11 7119407163570 12 83018865142591 13 960430934574181 14 11038161347163050 15 126162293709144860 16 1435268577300318321