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@rajdeepce-7UdrG8 • May 28, 2009
1,4,10,19,31,46,64,85,...
Am I right or wrong? -
@rajdeepce-7UdrG8 • May 28, 2009
Here is the equation for the series,
X(0)=0,
X(n+1)=X(n)+3*(n+1) -
@saandeep-sreerambatla-hWHU1M • May 28, 2009
Yes the answer is correct.
these numbers are called Centered_triangular_numbers.
for more information check.
<a href="https://en.wikipedia.org/wiki/Centered_triangular_number" target="_blank" rel="nofollow noopener noreferrer">Centered Triangular Number</a>
Equation is also provided there .