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A174852 Triangle T(n,k) read by rows. T(1,1)=1, n>1 T(n,1)=A049240, k>1 T(n,k)=A051731. 2
1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Except for the first term the first column is equal to A049240. The rest of the table equals A051731. The first column = 0 when n is a square greater than 1.

LINKS

Table of n, a(n) for n=1..105.

EXAMPLE

Table begins:

1,

1,1,

1,0,1,

0,1,0,1,

1,0,0,0,1,

1,1,1,0,0,1,

1,0,0,0,0,0,1,

1,1,0,1,0,0,0,1,

0,0,1,0,0,0,0,0,1,

1,1,0,0,1,0,0,0,0,1,

CROSSREFS

Cf. A174854.

Sequence in context: A117198 A271047 A054525 * A065333 A244611 A189289

Adjacent sequences:  A174849 A174850 A174851 * A174853 A174854 A174855

KEYWORD

nonn,tabl

AUTHOR

Mats Granvik, Mar 31 2010

STATUS

approved

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Last modified October 22 18:08 EDT 2019. Contains 328319 sequences. (Running on oeis4.)