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A126126
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Triangle, inverse of A110877.
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1
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1, -1, 1, 2, -4, 1, -4, 13, -7, 1, 13, -40, 33, -10, 1, -33, 120, -132, 62, -13, 1
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 0,4
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COMMENTS
| A110877 can be generated from M^n * [1,0,0,0...] where M = an infinite tridiagonal matrix with 1's in the super and subdiagonals and (1,3,3,3...) in the main diagonal.
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FORMULA
| Matrix inverse of A110877.
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EXAMPLE
| First few rows of the triangle are:
1;
-1, 1;
2, -4, 1;
-4, 13, -7, 1;
13, -40, 33, -10, 1;
-33, 120, -132, 62, -13, 1
...
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CROSSREFS
| Cf. A110877.
Sequence in context: A085111 A181332 A204021 * A078739 A004597 A077623
Adjacent sequences: A126123 A126124 A126125 * A126127 A126128 A126129
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KEYWORD
| tabl,uned,sign
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AUTHOR
| Gary W. Adamson (qntmpkt(AT)yahoo.com), Dec 17 2006
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