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A367634
Array read by descending antidiagonals, where row n=0 lists the natural numbers and where each new row n=1,2,... is found by taking the number n in the previous row, and "leaping" it over the next n terms to its right, keeping the other numbers fixed (see example).
2
1, 2, 2, 3, 1, 1, 4, 3, 3, 1, 5, 4, 2, 2, 1, 6, 5, 4, 4, 2, 1, 7, 6, 5, 5, 5, 2, 1, 8, 7, 6, 3, 3, 3, 2, 1, 9, 8, 7, 6, 6, 6, 3, 2, 1, 10, 9, 8, 7, 7, 7, 7, 3, 2, 1, 11, 10, 9, 8, 4, 4, 4, 4, 3, 2, 1, 12, 11, 10, 9, 8, 8, 8, 8, 4, 3, 2, 1, 13, 12, 11, 10, 9, 5, 5, 5, 5, 4, 3, 2, 1
OFFSET
1,2
EXAMPLE
The array begins:
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ...
2, 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ...
1, 3, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, ...
1, 2, 4, 5, 3, 6, 7, 8, 9, 10, 11, 12, 13, ...
1, 2, 5, 3, 6, 7, 4, 8, 9, 10, 11, 12, 13, ...
1, 2, 3, 6, 7, 4, 8, 5, 9, 10, 11, 12, 13, ...
1, 2, 3, 7, 4, 8, 5, 9, 10, 6, 11, 12, 13, ...
1, 2, 3, 4, 8, 5, 9, 10, 6, 11, 7, 12, 13, ...
1, 2, 3, 4, 5, 9, 10, 6, 11, 7, 12, 13, 8, ...
1, 2, 3, 4, 5, 10, 6, 11, 7, 12, 13, 8, 14, ...
1, 2, 3, 4, 5, 6, 11, 7, 12, 13, 8, 14, 15, ...
1, 2, 3, 4, 5, 6, 7, 12, 13, 8, 14, 15, 9, ...
1, 2, 3, 4, 5, 6, 7, 13, 8, 14, 15, 9, 16, ...
...
CROSSREFS
Cf. A000027.
Sequence in context: A157806 A328732 A130795 * A195663 A362749 A264010
KEYWORD
nonn,tabl
AUTHOR
Wesley Ivan Hurt, Nov 25 2023
STATUS
approved