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A158905 Triangle read by rows, A000012 * A158902 1
1, 3, 1, 6, 1, 1, 11, 2, 1, 1, 16, 2, 1, 1, 1, 25, 3, 2, 1, 1, 1, 32, 3, 2, 1, 1, 1, 1, 44, 4, 2, 2, 1, 1, 1, 1, 55, 4, 3, 2, 1, 1, 1, 1, 1, 70, 5, 3, 2, 2, 1, 1, 1, 1, 1, 81, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 104, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row sums = A024916: (1, 4, 8, 15, 21, 33, 41,...).
LINKS
FORMULA
Triangle read by rows, A000012 * A158902; where the A000012 multiplier takes jcolumn sums of triangle A158902 starting from the top.
EXAMPLE
First few rows of the triangle =
1;
3, 1;
6, 1, 1;
11, 2, 1, 1;
16, 2, 1, 1, 1;
25, 3, 2, 1, 1, 1;
32, 3, 2, 1, 1, 1, 1;
44, 4, 2, 2, 1, 1, 1, 1;
55, 4, 3, 2, 1, 1, 1, 1, 1;
70, 5, 3, 2, 2, 1, 1, 1, 1, 1;
81, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1;
104, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1;
117, 6, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1;
138, 7, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1;
...
CROSSREFS
Sequence in context: A128489 A034839 A089732 * A098076 A171852 A010287
KEYWORD
nonn,tabl
AUTHOR
STATUS
approved

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Last modified March 28 07:33 EDT 2024. Contains 371235 sequences. (Running on oeis4.)