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A134560
Triangle A051731 * A127775 (as infinite lower triangular matrices).
0
1, 1, 3, 1, 0, 5, 1, 3, 0, 7, 1, 0, 0, 0, 9, 1, 3, 5, 0, 0, 11, 1, 0, 0, 0, 0, 0, 13, 1, 3, 0, 7, 0, 0, 0, 15, 1, 0, 5, 0, 0, 0, 0, 0, 17, 1, 3, 0, 0, 9, 0, 0, 0, 0, 19, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 21, 1, 3, 5, 7, 0, 11, 0, 0, 0, 0, 0, 23
OFFSET
1,3
COMMENTS
Obtained also by replacing the 1's in column k of A051731 with (2k-1).
EXAMPLE
First few rows of the triangle:
1;
1, 3;
1, 0, 5;
1, 3, 0, 7;
1, 0, 0, 0, 9;
1, 3, 5, 0, 0, 11;
1, 0, 0, 0, 0, 0, 13;
1, 3, 0, 7, 0, 0, 0, 15;
...
CROSSREFS
Cf. A129235 (row sums), A051731, A127775.
Sequence in context: A185911 A187954 A119302 * A127626 A245095 A154791
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Oct 31 2007
STATUS
approved