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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
Sequence in context: A022662 A295703 A059051 * A120007 A092509 A214053
KEYWORD
nonn,tabl
AUTHOR
Gary W. Adamson, May 05 2007
STATUS
approved

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Last modified March 28 10:55 EDT 2024. Contains 371241 sequences. (Running on oeis4.)