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A133081
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An interpolation operator, companion to A133080.
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3
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1, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Row sums = A040001: (1, 1, 2, 1, 2, 1, 2, 1,...). A133081 * [1,2,3,...] = A133090: (1, 1, 5, 3, 9, 5, 13, 7, 17,...). A133080: diagonal and subdiagonal are switched.
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FORMULA
| Infinite lower triangular matrix, (1,0,1,0,...) in the main diagonal and (1,1,1,...) in the subdiagonal.
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EXAMPLE
| First few rows of the triangle are:
1;
1, 0;
0, 1, 1;
0, 0, 1, 0;
0, 0, 0, 1, 1;
...
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CROSSREFS
| Cf. A133080, A133090.
Sequence in context: A181115 A151666 A191747 * A125999 A073784 A128130
Adjacent sequences: A133078 A133079 A133080 * A133082 A133083 A133084
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KEYWORD
| nonn,tabl
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Sep 09 2007
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