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A133380
A055450 + A030111 - A000012 as infinite lower triangular matrices.
0
1, 1, 1, 3, 1, 1, 4, 5, 1, 1, 7, 6, 7, 1, 1, 10, 13, 8, 9, 1, 1, 16, 17, 21, 10, 11, 1, 24, 30, 26, 31, 12, 13, 1, 1, 38, 42, 52, 37, 43, 14, 15, 1, 1, 59, 69, 69, 84, 50, 57, 16, 17, 1, 1
OFFSET
1,4
COMMENTS
Row sums = A134508
EXAMPLE
First few rows of the triangle are:
1;
1, 1;
3, 1, 1;
4, 5, 1, 1;
7, 6, 7, 1, 1;
10, 13, 8, 9, 1, 1;
16, 17, 21, 10, 11, 1, 1;
24, 30, 26, 31, 12, 13, 1, 1;
38, 42, 52, 37, 43, 14, 15, 1, 1;
...
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, Oct 28 2007
STATUS
approved