Square Triangular Number | Perfect Square | Pentagonal Number
Square Triangular & Pentagonal Number Calculator
An online square triangular and pentagonal number calculation.
Square Triangular Number Formula
Square Triangular Number (Nk) = (1/32) × ( (17+12√2)k + (17−12√2)k − 2 )
Pentagonal Number Formula
Pentagonal number (Pn) = (3n2 - n) / 2
Square Triangular Number Generator up to 999
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