Boost 4

1+ = 1 Stone	18+ = 50 Stones	35+ = 171 Stones
2+ = 2 Stones	19+ = 55 Stones	36+ = 180 Stones
3+ = 3 Stones	20+ = 60 Stones	37+ = 190 Stones
4+ = 4 Stones	21+ = 66 Stones	38+ = 200 Stones
5+ = 6 Stones	22+ = 72 Stones	39+ = 210 Stones
6+ = 8 Stones	23+ = 78 Stones	40+ = 220 Stones
7+ = 10 Stones	24+ = 84 Stones	41+ = 231 Stones
8+ = 12 Stones	25+ = 91 Stones	42+ = 242 Stones
9+ = 15 Stones	26+ = 98 Stones	43+ = 253 Stones
10+ = 18 Stones	27+ = 105 Stones	44+ = 264 Stones
11+ = 21 Stones	28+ = 112 Stones	45+ = 276 Stones
12+ = 24 Stones	29+ = 120 Stones	46+ = 288 Stones
13+ = 28 Stones	30+ = 128 Stones	47+ = 300 Stones
14+ = 32 Stones	31+ = 136 Stones	48+ = 312 Stones
15+ = 36 Stones	32+ = 144 Stones	49+ = 325 Stones
16+ = 40 Stones	33+ = 153 Stones	50+ = 338 Stones
17+ = 45 Stones	34+ = 162 Stones