A140340 Square array read by rows: T(n,k) = 19*n^2+10*k^2-(n-1)*(20*(k-1)+10), with 14 columns.

29, 59, 109, 179, 269, 379, 509, 659, 829, 1019, 1229, 1459, 1709, 1979, 76, 86, 116, 166, 236, 326, 436, 566, 716, 886, 1076, 1286, 1516, 1766, 161, 151, 161, 191, 241, 311, 401, 511, 641, 791, 961, 1151, 1361, 1591, 284, 254, 244, 254, 284, 334, 404, 494, 604, 734, 884, 1054, 1244, 1454

Offset: 1

Author

Aldrich Stevens (aldrichstevens(AT)msn.com), May 29 2008

Keywords

• nonn
• tabf
• less

Examples

			Array begins:
   29,  59, 109, 179, 269, 379, 509, 659, 829, 1019, 1229, 1459, 1709, 1979;
   76,  86, 116, 166, 236, 326, 436, 566, 716,  886, 1076, 1286, 1516, 1766;
  161, 151, 161, 191, 241, 311, 401, 511, 641,  791,  961, 1151, 1361, 1591;
  284, 254, 244, 254, 284, 334, 404, 494, 604,  734,  884, 1054, 1244, 1454;
  445, 395, 365, 355, 365, 395, 445, 515, 605,  715,  845,  995, 1165, 1355;
...
		

Crossrefs

Cf. A140754 (a very similar array), A140755.

Programs

Maple

T:=(n,k) -> 19*n^2+10*k^2-(n-1)*(20*(k-1)+10);

Extensions

Edited by Omar E. Pol and N. J. A. Sloane, Jan 11 2009