# A378958 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 8 4 32 5 145 6 681 7 3337 8 16773 9 86181 10 450268 11 2385544 12 12784861 13 69189509 14 377576512 15 2075423744 16 11480230037 17 63857579629 18 356962271136 19 2004255583560 20 11298268724556 21 63919517790933 22 362806671879955 23 2065443363987045 24 11790688867079872 25 67477283970889867