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A354487
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Triangle read by rows: T(n,k) is the denominator of the n-th term of the Somos-k sequence, 4 <= k <= n.
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2
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 91, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1
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OFFSET
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4,96
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LINKS
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FORMULA
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T(n,k) = 1 if 4 <= k <= 7 or n < A030127(k).
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EXAMPLE
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Triangle begins:
n\k| 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
---+------------------------------------------------------
4 | 1
5 | 1 1
6 | 1 1 1
7 | 1 1 1 1
8 | 1 1 1 1 1
9 | 1 1 1 1 1 1
10 | 1 1 1 1 1 1 1
11 | 1 1 1 1 1 1 1 1
12 | 1 1 1 1 1 1 1 1 1
13 | 1 1 1 1 1 1 1 1 1 1
14 | 1 1 1 1 1 1 1 1 1 1 1
15 | 1 1 1 1 1 1 1 1 1 1 1 1
16 | 1 1 1 1 1 1 1 1 1 1 1 1 1
17 | 1 1 1 1 7 1 1 1 1 1 1 1 1 1
18 | 1 1 1 1 91 1 1 1 1 1 1 1 1 1 1
19 | 1 1 1 1 2275 7 1 1 1 1 1 1 1 1 1 1
20 | 1 1 1 1 138775 7 5 1 1 1 1 1 1 1 1 1 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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