# A161809 (b-file synthesized from sequence entry) 0 1 1 3 2 6 3 12 4 21 5 33 6 51 7 75 8 105 9 147 10 201 11 267 12 354 13 462 14 591 15 753 16 948 17 1176 18 1455 19 1785 20 2166 21 2622 22 3153 23 3759 24 4470 25 5286 26 6207 27 7275 28 8490 29 9852 30 11415 31 13179 32 15144 33 17376 34 19875 35 22641 36 25761 37 29235 38 33063 39 37353 40 42105 41 47319 42 53124