

A152614


Square array read by upwards antidiagonals.


0



1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

Partial sums + 2 are the natural numbers. For rows greater than columns the mobius function times 1 is interleaved with column1 zeros in the columns. For columns greater than rows the mobius function times 1 is interleaved with row1 zeros in the rows.


LINKS

Table of n, a(n) for n=1..97.


EXAMPLE

Table begins;
1..1..1..0..1.1..1..0
.1.1..0..1..0..1..0..0
.1..0.1..0..0..1..0..0
.0..1..0.1..0..0..0..1
.1..0..0..0.1..0..0..0
1..1..1.,0..0.1..0..0
.1..0..0..0..0..0.1..0
.0..0..0..1..0..0..0.1
and partial sums + 2 are: 1,2,3,4,5,6,7,8,9...


PROG

(Excel) =if(mod(row(); column())=0; 1*lookup(row()/column(); A000027; A008683); if(mod(column(); row())=0; 1*lookup(column()/row(); A000027; A008683); 0))


CROSSREFS

Cf. A000027, A008683.
Sequence in context: A300294 A071041 A082551 * A127507 A204441 A127247
Adjacent sequences: A152611 A152612 A152613 * A152615 A152616 A152617


KEYWORD

sign,tabl


AUTHOR

Mats Granvik, Dec 09 2008


STATUS

approved



