# A015220 (b-file synthesized from sequence entry) 0 0 1 4 2 10 3 20 4 56 5 84 6 120 7 220 8 286 9 364 10 560 11 680 12 816 13 1140 14 1330 15 1540 16 2024 17 2300 18 2600 19 3276 20 3654 21 4060 22 4960 23 5456 24 5984 25 7140 26 7770 27 8436 28 9880 29 10660 30 11480 31 13244 32 14190 33 15180 34 17296 35 18424 36 19600 37 22100 38 23426 39 24804 40 27720 41 29260 42 30856 43 34220 44 35990