A097292 Rectangular array T, by antidiagonals: T(n,k) = rank of n in A097291 at which the pair (n,k) occurs.

1, 2, 4, 5, 3, 9, 10, 8, 7, 16, 17, 13, 6, 12, 25, 26, 20, 15, 14, 19, 36, 37, 29, 22, 11, 21, 28, 49, 50, 40, 31, 24, 23, 30, 39, 64, 65, 53, 42, 33, 18, 32, 41, 52, 81, 82, 68, 55, 44, 35, 34, 43, 54, 67, 100, 101, 85, 70, 57, 46, 27, 45, 56, 69, 84, 121

Offset

1,2

Comments

Row 1 is A002522.

Column 1 (squares) is A002900.

Main diagonal is 2+(n-1)^2 for n>1, cf. A010000.

Links

Table of n, a(n) for n=1..66.

Example

Northwest corner:
   1  2  5  10
   4  3  8  13
   9  7  6  15
  16 12 14  11
T(3,4) = 15 because in A097291, the pair 3,4 occurs at positions 15,16.

Crossrefs

Cf. A097291.

Cf. A002522, A010000.

Sequence in context: A117606 A245814 A060736 * A269780 A038776 A210863

Adjacent sequences: A097289 A097290 A097291 * A097293 A097294 A097295

Keyword

nonn,tabl

Author

Clark Kimberling, Aug 05 2004

Status

approved