|
| |
| |
|
|
|
1, 5, 1, 11, 5, 1, 19, 11, 5, 1, 29, 19, 11, 5, 1, 41, 29, 19, 11, 5, 1, 55, 41, 29, 19, 11, 5, 1, 71, 55, 41, 29, 19, 11, 5, 1, 89, 71, 55, 41, 19, 19, 11, 5, 1, 109, 89, 71, 55, 41, 29, 19, 11, 5, 1
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,2
|
|
|
COMMENTS
|
Row sums = A084990 starting (1, 6, 17, 36, 65, 106,...).
|
|
|
LINKS
|
Table of n, a(n) for n=1..55.
|
|
|
FORMULA
|
(A004736 * A000012) - (A000012 * A004736) - A000012; as infinite lower triangular matrices. n-th row = n descending terms of A028387: (1, 5, 11, 19, 29, 41, 55,...). By columns, each column = A028387: (1, 5, 11, 19, 29,...).
|
|
|
EXAMPLE
|
First few rows of the triangle are:
1;
5, 1;
11, 5, 1;
19, 11, 5, 1;
29, 19, 11, 5, 1;
41, 29, 19, 11, 5, 1;
55, 41, 29, 19, 11, 5, 1;
...
|
|
|
CROSSREFS
|
Cf. A028387, A084990, A004736, A000012.
Sequence in context: A189745 A062967 A067292 * A185953 A075677 A051853
Adjacent sequences: A131779 A131780 A131781 * A131783 A131784 A131785
|
|
|
KEYWORD
|
nonn,tabl
|
|
|
AUTHOR
|
Gary W. Adamson, Jul 14 2007
|
|
|
STATUS
|
approved
|
| |
|
|
