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A090174

Triangle read by rows, related to Pascal's triangle read mod 2.

7

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

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..104.

Y. Moshe, The density of 0's in recurrence double sequences, J. Number Theory, 103 (2003), 109-121; see Fig. 2.

FORMULA

a(n, k) = A091533(n, k) mod 2.

EXAMPLE

1; 1,1; 0,1,0; 1,1,1,1; 1,1,1,1,1; ...

CROSSREFS

Row sums: A091564. Cf. A007318, A083093, A090171-A090173.

Sequence in context: A342004 A284881 A374048 * A165556 A348292 A127243

Adjacent sequences: A090171 A090172 A090173 * A090175 A090176 A090177

KEYWORD

nonn,easy,tabl

AUTHOR

N. J. A. Sloane, Jan 19 2004

EXTENSIONS

Edited and extended by Christian G. Bower, Jan 19 2004

STATUS

approved