68838

Appears in sequences

• Generalized centered polygonal numbers.at n=20A081282
• An interleaved sequence of pyramidal and polygonal numbers.at n=39A081284
• T(n,k)=Number of nXnXn triangular 0..k arrays with some element plus some adjacent element totalling k+1, k or k-1 exactly once.at n=47A270850
• Number of 3X3X3 triangular 0..n arrays with some element plus some adjacent element totalling n+1, n or n-1 exactly once.at n=7A270852
• a(n) = (n + 2)*(n^2 + n - 1).at n=40A318765
• Number of partitions of the n-th n-gonal number into n-gonal numbers.at n=14A337762