# A037793 (b-file synthesized from sequence entry) 1 3 2 14 3 57 4 228 5 915 6 3662 7 14649 8 58596 9 234387 10 937550 11 3750201 12 15000804 13 60003219 14 240012878 15 960051513 16 3840206052 17 15360824211 18 61443296846 19 245773187385 20 983092749540 21 3932370998163 22 15729483992654 23 62917935970617 24 251671743882468 25 1006686975529875 26 4026747902119502