|
|
A130069
|
|
Primes by columns, interspersed with (k-1) zeros.
|
|
2
|
|
|
2, 3, 2, 5, 0, 2, 7, 3, 0, 2, 11, 0, 0, 0, 2, 13, 5, 3, 0, 0, 2, 17, 0, 0, 0, 0, 0, 2, 19, 7, 0, 3, 0, 0, 0, 23, 0, 5, 0, 0, 0, 0, 0, 2, 29, 11, 0, 0, 3, 0, 0, 0, 0, 2
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
Left column = the primes, A000040; row sums = A007445, (2, 5, 7, 12, 13, 23, ...), the inverse Moebius transform of the primes. A130070 = A130069 with nonzero terms reversed and mapped on A051731.
|
|
LINKS
|
|
|
FORMULA
|
Primes by columns, interspersed with (k-1) zeros. Map the primes on the "1" terms of A051731, by columns; and rest zeros.
|
|
EXAMPLE
|
First few rows of the triangle:
2;
3, 2;
5, 0, 2;
7, 3, 0, 2;
11, 0, 0, 0, 2;
13, 5, 3, 0, 0, 2;
17, 0, 0, 0, 0, 0, 2;
19, 7, 0, 3, 0, 0, 0, 2;
23, 0, 5, 0, 0, 0, 0, 0, 2;
29, 11, 0, 0, 3, 0, 0, 0, 0, 2;
...
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|