A081349 Square maze arrangement of the natural numbers, read by antidiagonals.

1, 2, 8, 3, 7, 9, 4, 6, 10, 24, 15, 5, 11, 23, 25, 16, 14, 12, 22, 26, 48, 35, 17, 13, 21, 27, 47, 49, 36, 34, 18, 20, 28, 46, 50, 80, 63, 37, 33, 19, 29, 45, 51, 79, 81, 64, 62, 38, 32, 30, 44, 52, 78, 82, 120, 99, 65, 61, 39, 31, 43, 53, 77, 83, 119, 121, 100, 98, 66, 60, 40

Offset

0,2

Links

Table of n, a(n) for n=0..70.

Index entries for sequences that are permutations of the natural numbers

Example

Starting with 1,2,3,4, turn (LL) and then repeat (RRR)(LLL) to get:
.
   1   8---9  24 ...
   |   |   |   |
   2   7  10  23 ...
   |   |   |   |
   3   6  11  22 ...
   |   |   |   |
   4---5  12  21 ...
           |   |
  15--14--13  20 ...
   |           |
  16--17--18--19 ...
  ...

Crossrefs

Cf. A081344, A093650.

First row is A081351. First column is A081350.

Main diagonal is A081352. Main subdiagonal is 2*A000217(n+1).

Sequence in context: A133840 A337570 A190732 * A111445 A076696 A011057

Adjacent sequences: A081346 A081347 A081348 * A081350 A081351 A081352

Keyword

nonn,tabl

Author

Paul Barry, Mar 19 2003

Status

approved