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A081349
Square maze arrangement of the natural numbers, read by antidiagonals.
6
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
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
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
KEYWORD
nonn,tabl
AUTHOR
Paul Barry, Mar 19 2003
STATUS
approved