



1, 2, 1, 4, 3, 2, 7, 6, 5, 3, 12, 11, 10, 8, 5, 19, 18, 17, 15, 12, 7, 30, 29, 28, 26, 23, 18, 11, 45, 44, 43, 41, 38, 33, 26, 15, 67, 66, 65, 63, 60, 55, 48, 37, 22, 97, 96, 95, 93, 90, 85, 78, 67, 52, 30
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OFFSET

0,2


COMMENTS

Right border = the partition numbers, A000041.


LINKS

Table of n, a(n) for n=0..54.


FORMULA

A140207 * A000012 as infinite lower triangular matrices.


EXAMPLE

First few rows of the triangle are:
1;
2, 1;
4, 3, 2;
7, 6, 5, 3;
12, 11, 10, 8, 5;
19, 18, 17, 15, 12, 7;
30, 29, 28, 26, 23, 18, 11;
45, 44, 43, 41, 38, 33, 26, 15;
...
nth row of the triangle = partial sums nth row terms of triangle A140207 starting from the right. Example: row 3 = (7, 6, 5, 3), since row 3 of triangle A140207 = (1, 1, 2, 3).


CROSSREFS

Cf. A000041, A000070 (first column), A141156 (row sums), A140207.
Sequence in context: A064277 A287010 A144330 * A204922 A057669 A243610
Adjacent sequences: A141152 A141153 A141154 * A141156 A141157 A141158


KEYWORD

nonn,tabl


AUTHOR

Gary W. Adamson & Roger L. Bagula, Jun 12 2008


STATUS

approved



