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A128227
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Right border (1,1,1...) added to A002260.
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5
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1, 1, 1, 1, 2, 1, 1, 2, 3, 1, 1, 2, 3, 4, 1, 1, 2, 3, 4, 5, 1, 1, 2, 3, 4, 5, 6, 1, 1, 2, 3, 4, 5, 6, 7, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,5
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COMMENTS
| Row sums = A000124: (1, 2, 4, 7, 11, 16,...). n* each term of the triangle gives A128228, having row sums A006000: (1, 4, 12, 28, 55,...).
Eigensequence of the triangle = A005425: (1, 2, 5, 14, 43,...). [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 27 2010]
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FORMULA
| "1" added to each row of "start counting again": (1; 1,2; 1,2,3,...) such that a(1) = 1, giving: (1; 1,1; 1,2,1;...).
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EXAMPLE
| First few rows of the triangle are:
1;
1, 1;
1, 2, 1;
1, 2, 3, 1;
1, 2, 3, 4, 1;
...
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CROSSREFS
| Cf. A002260, A128228, A000124, A006000.
Cf. A005425 [From Gary W. Adamson (qntmpkt(AT)yahoo.com), Aug 27 2010]
Sequence in context: A088198 A088426 A124769 * A176484 A144328 A140207
Adjacent sequences: A128224 A128225 A128226 * A128228 A128229 A128230
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Feb 19 2007
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