A131335 revision #2
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1, 1, 1, 2, 1, 1, 2, 2, 2, 1, 3, 2, 4, 2, 1, 3, 3, 6, 4, 3, 1, 4, 3, 9, 6, 7, 3, 1, 4, 4, 12, 9, 13, 7, 4, 1, 5, 4, 16, 12, 22, 13, 11, 4, 1, 5, 5, 20, 16, 34, 22, 24, 11, 5, 1
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OFFSET
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1,4
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COMMENTS
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Row sums = A000071, Fibonacci numbers - 1, starting (1, 2, 4, 7, 12, 20, 33,...).
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LINKS
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FORMULA
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EXAMPLE
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First few rows of the triangle are:
1;
1, 1;
2, 1, 1;
2, 2, 2, 1;
3, 2, 4, 2, 1;
3, 3, 6, 4, 3, 1;
4, 3, 9, 6, 7, 3, 1;
...
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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