Given a number n, the task is to find the nth Centered Tridecagonal Number.
A Centered tridecagonal number represents a dot at the center and other dots surrounding the center dot
in the successive tridecagonal(13 sided polygon) layer.
Input : 2
Output : 14
Input : 9
Output : 469
Formula for nth Centered tridecagonal number:
- Centered hexagonal number
- Centered Square Number
- Centered Octagonal Number
- Centered decagonal number
- Centered Octadecagonal Number
- Centered Octahedral number
- Centered pentagonal number
- Centered Dodecagonal Number
- Centered dodecahedral number
- Centered Pentadecagonal Number
- Centered triangular number
- Centered Hexadecagonal Number
- Centered heptagonal number
- Centered cube number
- Centered tetrahedral number
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