|
| |
|
|
A131828
|
|
Square of lower triangular matrix in A131821, read by rows.
|
|
0
|
|
|
|
1, 6, 4, 14, 5, 9, 25, 7, 7, 16, 39, 9, 9, 9, 25, 56, 11, 11, 11, 11, 36, 76, 13, 13, 13, 13, 13, 49, 99, 15, 15, 15, 15, 15, 15, 64, 125, 17, 17, 17, 17, 17, 17, 17, 81, 154, 19, 19, 19, 19, 19, 19, 19, 19, 100
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
Left column = A095794: (1, 6, 14, 25, 39, 56, ...).
Row sums = A060544: (1, 10, 28, 55, 91, 190, ...).
|
|
|
LINKS
|
Table of n, a(n) for n=1..55.
|
|
|
FORMULA
|
A131821^2.
|
|
|
EXAMPLE
|
First few rows of the triangle:
1;
6, 4;
14, 5, 9;
25, 7, 7, 16;
39, 9, 9, 9, 25;
56, 11, 11, 11, 11, 36;
76, 13, 13, 13, 13, 13, 49;
...
|
|
|
CROSSREFS
|
Cf. A131821, A095794, A060544.
Sequence in context: A180497 A213038 A337512 * A096038 A064462 A248266
Adjacent sequences: A131825 A131826 A131827 * A131829 A131830 A131831
|
|
|
KEYWORD
|
nonn,tabl
|
|
|
AUTHOR
|
Gary W. Adamson, Jul 20 2007
|
|
|
STATUS
|
approved
|
| |
|
|
