centered triangular number
(Q190890)
centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers
centered figurate number that represents a triangle with a dot in the center and all other dots surrounding the center in successive triangular layers
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Current Data About
centered triangular number
| (P31) |
(Q77358734)
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| (P279) |
(Q190898)
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| (P2534) |
C_{3,n}={\frac {3}{2}}n(n-1)+1={{3n^{2}-3n+2} \over 2}
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| (P6104) |
(Q8487137)
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| (P7235) |
n
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