x 5 60 − x 4 4 + 17 x 3 12 − 9 x 2 4 + 46 x 15 − 1 {\displaystyle {\frac {x^{5}}{60}}-{\frac {x^{4}}{4}}+{\frac {17x^{3}}{12}}-{\frac {9x^{2}}{4}}+{\frac {46x}{15}}-1}
3 n 2 + 3 n + 2 2 {\displaystyle {{3n^{2}+3n+2} \over 2}}
Timeline for drug development:
