# A067767 (b-file synthesized from sequence entry) 4 4 5 90 6 1349 7 17220 8 203568 9 2312094 10 25691670 11 282000444 12 3074136464 13 33387698708 14 361969672904 15 3921901043440 16 42499598861832 17 460831546801414 18 5001468564165262 19 54341248085414380