# A375652 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 26 4 136 5 812 6 5494 7 41414 8 341800 9 3056984 10 29415274 11 302501498 12 3305797444 13 38212967444 14 465409979038 15 5951991056558 16 79686155008816 17 1113909729606896 18 16219814971477330 19 245503998889083362 20 3855373914424695196 21 62708526467241370892