Question

A statement Sn about the positive integers is given. Write statements S1, S2, and S3, and show that each of these statements is true.

Answer 1

\[S \eta : 1^{2} + 4^{2} + 7^{2} + ... + (3n -2)^{2} = \frac{ n(6n ^{2}-3n-1) }{ 2 }\]

Answer 2

@timo86m can you help?

Answer 3

@Hero ??

Answer 4

Have fun :)