# A127764 (b-file synthesized from sequence entry) 1 1 2 4 3 10 4 20 5 35 6 55 7 82 8 116 9 157 10 206 11 265 12 333 13 411 14 500 15 601 16 714 17 839 18 978 19 1130 20 1298 21 1480 22 1678 23 1892 24 2123 25 2371 26 2637 27 2922 28 3225 29 3548 30 3892 31 4256 32 4641 33 5047 34 5477 35 5928 36 6404 37 6903 38 7426 39 7974 40 8548 41 9148 42 9774 43 10427 44 11108 45 11816 46 12553