A095831 Triangle read by rows: T(n,k) = (n-k)^2, n>=1, 1<=k<=n.

0, 1, 0, 4, 1, 0, 9, 4, 1, 0, 16, 9, 4, 1, 0, 25, 16, 9, 4, 1, 0, 36, 25, 16, 9, 4, 1, 0, 49, 36, 25, 16, 9, 4, 1, 0, 64, 49, 36, 25, 16, 9, 4, 1, 0, 81, 64, 49, 36, 25, 16, 9, 4, 1, 0, 100, 81, 64, 49, 36, 25, 16, 9, 4, 1, 0, 121, 100, 81, 64, 49, 36, 25, 16, 9, 4, 1, 0, 144, 121, 100, 81

Offset: 1

Author

Herman Jamke (hermanjamke(AT)fastmail.fm), Jul 10 2004

Keywords

• easy
• nonn
• tabl

Comments

Alternating row sums give A000217. - Omar E. Pol, Jan 26 2014

Row sums give A000330. - Omar E. Pol, Jan 27 2014

Examples

			From _Omar E. Pol_, Jan 27 2011: (Start)
0;
1,    0;
4,    1,  0;
9,    4,  1,  0;
16,   9,  4,  1,  0;
25,  16,  9,  4,  1,  0;
36,  25, 16,  9,  4,  1,  0;
49,  36, 25, 16,  9,  4,  1,  0;
64,  49, 36, 25, 16,  9,  4,  1,  0;
81,  64, 49, 36, 25, 16,  9,  4,  1,  0;
100, 81, 64, 49, 36, 25, 16,  9,  4,  1,  0;
...
For n = 8 the row sum is 49 + 36 + 25 + 16 + 9 + 4 + 1 + 0 = A000330(8-1) = 140. The alternating row sum is 49 - 36 + 25 - 16 + 9 - 4 + 1 - 0 = A000217(8-1) = 28.
(End)
		

Crossrefs

Cf. A055461.