Find the sum to `n` terms of the series: `1/(1+1^2+1^4)+2/(1+2^2+2^4)+3/(1+3^2+3^4)+`

Explanation

To find the sum to `n` terms of the series:

\[ S_n = \frac{1}{1 + 1^2 + 1^4} + \frac{2}{1 + 2^2 + 2^4} + \frac{3}{1 + 3^2 + 3^4} + \ldots + \frac{n}{1 + n^2 + n^4} \]

we can follow these steps:

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