# A069958 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 0 10 0 11 6 12 18 13 36 14 60 15 90 16 126 17 168 18 216 19 270 20 0 21 18 22 48 23 90 24 144 25 210 26 288 27 378 28 480 29 594 30 0 31 36 32 90 33 162 34 252 35 360 36 486 37 630 38 792 39 972 40 0 41 60 42 144 43 252 44 384 45 540 46 720 47 924 48 1152 49 1404 50 0 51 90 52 210 53 360 54 540 55 750 56 990 57 1260 58 1560 59 1890 60 0