# A143590 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 2 5 3 6 4 7 7 8 10 9 16 10 24 11 36 12 54 13 80 14 120 15 180 16 269 17 404 18 605 19 908 20 1361 21 2041 22 3063 23 4591 24 6890 25 10333 26 15509 27 23259 28 34901 29 52344 30 78516 31 117762 32 176636 33 264944 34 397405 35 596099 36 894193 37 1341290 38 2011935 39 3017927 40 4526825