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A167143
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Column 0 of the matrix cube of triangle A167015.
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3
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1, 3, 9, 43, 312, 3121, 39616, 602135, 10547538, 207620746, 4514623895, 107150379369, 2751648614456, 75953000041971, 2241736112814551, 70446370941793711, 2348550874184397643, 82802885494751780415
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OFFSET
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0,2
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COMMENTS
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This sequence equals the reversal of row 3 of A167015 (when infinitely extended to the left), and then shifted left 1 place.
In triangle T=A167015, row n of T equals the initial n terms in column 0 of matrix power T^n, reversed and with an appended '1'.
The definition of A167015 may be relaxed to allow the triangle to extend indefinitely also to the left, making each row infinite.
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LINKS
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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