# A125352 (b-file synthesized from sequence entry) 0 1 1 15 2 115 3 735 4 5435 5 40965 6 315991 7 2469909 8 19495747 9 154956453 10 1237813755 11 9923510469 12 79762415747 13 642295225197 14 5178982417003 15 41798669030805 16 337575342572995 17 2727627544083901 18 22046802610388635 19 178241899736229829