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.

A097290 Rectangular array T, by antidiagonals: T(n,k) = rank of k-th n in A097289.

Original entry on oeis.org

1, 2, 3, 5, 4, 6, 8, 11, 7, 9, 13, 16, 12, 10, 14, 18, 21, 23, 17, 15, 19, 25, 28, 30, 24, 22, 20, 26, 32, 35, 37, 39, 31, 29, 27, 33, 41, 44, 46, 48, 40, 38, 36, 34, 42, 50, 53, 55, 57, 59, 49, 47, 45, 43, 51, 61, 64, 66, 68, 70, 60, 58, 56, 54, 52, 62, 72, 75, 77, 79, 81, 83
Offset: 1

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Author

Clark Kimberling, Aug 05 2004

Keywords

Comments

As a sequence this is a permutation of the natural numbers.

Examples

			Northwest corner:
1 2 5 8
3 4 11 16
6 7 12 23
9 10 17 24
		

Crossrefs

Cf. A098289.