# A046887 (b-file synthesized from sequence entry) 1 1 2 105 3 165 4 385 5 595 6 1365 7 1785 8 2145 9 2805 10 3135 11 6545 12 7917 13 10465 14 11305 15 15015 16 17255 17 20615 18 25935 19 26565 20 40755 21 106743 22 171717 23 255255 24 279565 25 285285 26 327845 27 350455 28 373065 29 463505