# A337410 (b-file synthesized from sequence entry) 1 1 2 2 3 1 4 3 5 6 6 1 7 4 8 18 9 70 10 1 11 5 12 40 13 1407 14 93024 15 1 16 6 17 75 18 12480 19 294157089 20 47823602694208 21 1 22 7 23 126 24 69050 25 91983927296 26 67514530382043163023924 27 443077371786837979607993095063601152 28 1