# A015945 (b-file synthesized from sequence entry) 1 2 2 10 3 50 4 250 5 410 6 1250 7 2050 8 5050 9 6250 10 10250 11 16810 12 25250 13 31250 14 51250 15 84050 16 126250 17 156250 18 207050 19 256250 20 336610 21 405050 22 420250 23 510050 24 631250 25 689210 26 781250 27 1035250 28 1281250 29 1683050 30 1750250 31 2025250 32 2101250 33 2550250 34 3156250 35 3446050