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

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

1,2

Comments

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

Links

Table of n, a(n) for n=1..72.

Example

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

Crossrefs

Cf. A098289.

Sequence in context: A209293 A328021 A361504 * A279344 A316669 A185180

Adjacent sequences: A097287 A097288 A097289 * A097291 A097292 A097293

Keyword

nonn,tabl

Author

Clark Kimberling, Aug 05 2004

Status

approved