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A133727
A051731 * A007438 as a diagonalized matrix.
0
1, 1, 2, 1, 0, 5, 1, 2, 0, 7, 1, 0, 0, 0, 14, 1, 2, 5, 0, 0, 13, 1, 0, 0, 0, 0, 0, 27, 1, 2, 0, 7, 0, 0, 0, 26, 1, 0, 5, 0, 0, 0, 0, 0, 39, 1, 2, 0, 0, 14, 0, 0, 0, 0, 38
OFFSET
1,3
COMMENTS
Row sums = the triangular numbers: (1, 3, 6, 10, 15, ...).
Right diagonal = A007438.
FORMULA
Inverse Mobius transform of A007438 as a diagonalized matrix; i.e., A051731 * (1; 0,2 0,0,5; 0,0,0,7; ...) where A007438 = (1, 2, 5, 7, 14, 13, 27, ...), the Mobius transform of the triangular numbers.
EXAMPLE
First few rows of the triangle:
1;
1, 2;
1, 0, 5;
1, 2, 0, 7;
1, 0, 0, 0, 14;
1, 2, 5, 0, 0, 13;
1, 0, 0, 0, 0, 0, 27;
...
CROSSREFS
Sequence in context: A350262 A243821 A143445 * A103185 A130513 A114596
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Sep 21 2007
STATUS
approved