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A345018
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For each n, append to the sequence n^2 consecutive integers, starting from n.
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1
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1, 2, 3, 4, 5, 3, 4, 5, 6, 7, 8, 9, 10, 11, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29
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OFFSET
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1,2
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COMMENTS
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Irregular triangle read by rows T(n,k) in which row n lists the integers from n to n + n^2 - 1, with n >= 1.
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LINKS
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FORMULA
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T(n,k) = n + k - 1, with n >= 1 and 1 <= k <= n^2.
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EXAMPLE
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Written as an irregular triangle T(n,k) the sequence begins:
n\k| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...
---+---------------------------------------------------------------
1 | 1;
2 | 2, 3, 4, 5;
3 | 3, 4, 5, 6, 7, 8, 9, 10, 11;
4 | 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19;
...
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MATHEMATICA
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Table[Range[n, n^2+n-1], {n, 6}] (* Paolo Xausa, Sep 05 2023 *)
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PROG
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(PARI) row(n) = vector(n^2, k, n+k-1); \\ Michel Marcus, Jun 08 2021
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CROSSREFS
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KEYWORD
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nonn,tabf
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AUTHOR
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STATUS
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approved
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