# A007768 (b-file synthesized from sequence entry) 1 3 2 3 3 4 4 4 5 6 6 17 7 36 8 44 9 49 10 74 11 122 12 126 13 744 14 7814 15 9238 16 9432 17 52114 18 33241100 19 85747623 20 353210861 21 355051655 22 1950030118 23 32235431345 24 50590143817 25 58937626393 26 482819610949 27 1515905452711 28 2679281166868 29 25090147463646 30 207012319502700