cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A275898 Read the infinite chessboard underlying A065188 by successive antidiagonals and record when the queens are encountered. Here the rows and columns are indexed starting at 1 (as in A065188).

Original entry on oeis.org

1, 8, 14, 24, 33, 97, 115, 143, 164, 184, 198, 262, 291, 447, 485, 582, 609, 796, 846, 920, 973, 1019, 1053, 1195, 1256, 1465, 1562, 1734, 1808, 1915, 1993, 2105, 2321, 2388, 2584, 2956, 3052, 3290, 3353, 3603, 3709, 3972, 4040, 4314, 4430, 4523, 4597, 5089, 5317, 5606, 5845, 6174, 6372
Offset: 1

Views

Author

N. J. A. Sloane, Aug 23 2016, following a suggestion from David A. Corneth

Keywords

Examples

			The second queen appears in the fourth antidiagonal at position 8 (calling the top left square square 1):
Qxxx
xxxQ
xQxx
xxxx
so a(2) = 8.
		

Crossrefs