Boost 15

1+ = 1 Stone 18+ = 21 Stones 35+ = 60 Stones
2+ = 2 Stones 19+ = 23 Stones 36+ = 63 Stones
3+ = 3 Stones 20+ = 25 Stones 37+ = 66 Stones
4+ = 4 Stones 21+ = 27 Stones 38+ = 69 Stones
5+ = 5 Stones 22+ = 29 Stones 39+ = 72 Stones
6+ = 6 Stones 23+ = 31 Stones 40+ = 75 Stones
7+ = 7 Stones 24+ = 33 Stones 41+ = 78 Stones
8+ = 8 Stones  25+ = 35 Stones 42+ = 81 Stones
9+ = 9 Stones 26+ = 37 Stones 43+ = 84 Stones
10+ = 10 Stones 27+ = 39 Stones 44+ = 87 Stones
11+ = 11 Stones 28+ = 41 Stones 45+ = 90 Stones
12+ = 12 Stones 29+ = 43 Stones 46+ = 94 Stones
13+ = 13 Stones 30+ = 45 Stones 47+ = 98 Stones
14+ = 14 Stones 31+ = 48 Stones 48+ = 102 Stones
15+ = 15 Stones 32+ = 51 Stones 49+ = 106 Stones
16+ = 17 Stones 33+ = 54 Stones 50+ = 110 Stones
17+ = 19 Stones 34+ = 57 Stones