Question and Answers Forum

All Questions      Topic List

None Questions

Previous in All Question      Next in All Question      

Previous in None      Next in None      

Question Number 123777 by 676597498 last updated on 28/Nov/20

Commented by MJS_new last updated on 28/Nov/20

$$\mathrm{we}\mathrm{can}\mathrm{find}\mathrm{a}\mathrm{function}\mathrm{for}\mathrm{any}\mathrm{result}$$

Answered by Olaf last updated on 28/Nov/20

$$u\left(n\right)=n^3-1$$$$u\left(2\right)=7$$$$u\left(3\right)=26$$$$u\left(4\right)=63$$$$u\left(5\right)=124$$$$u\left(6\right)=215$$$$\mathrm{OEIS}\mathrm{A}068601$$$$\mathrm{http}://\mathrm{oeis}.\mathrm{org}/\mathrm{A}068601$$

Commented by MJS_new last updated on 28/Nov/20

$$\mathrm{I}\mathrm{saw}\mathrm{this}\mathrm{solution}\mathrm{too}.\mathrm{but}\mathrm{as}\mathrm{you}\mathrm{know},\mathrm{we}$$$$\mathrm{are}\mathrm{not}\mathrm{limited}\mathrm{to}\mathrm{polynomials}...{\mathrm{I}}^{\prime }\mathrm{m}\mathrm{of}\mathrm{the}$$$$\mathrm{opinion},\mathrm{if}\mathrm{we}{\mathrm{don}}^{\prime }\mathrm{t}\mathrm{know}\mathrm{what}\mathrm{we}\mathrm{are}\mathrm{allowed}$$$$\mathrm{to}\mathrm{use},\mathrm{we}\mathrm{can}\mathrm{use}\mathrm{what}\mathrm{we}\mathrm{want}.$$$$a_1=-12$$$$a_2=-11$$$$a_3=2$$$$a_4=28$$$$a_n=a_{n-4}+a_{n-3}+a_{n-2}+a_{n-1}\mathrm{\forall }n>4$$$$a_5=7$$$$a_6=26$$$$a_7=63$$$$a_8=124$$$$a_9=220$$

Terms of Service

Privacy Policy

Contact: info@tinkutara.com