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A059318
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Pascal's "rhombus" (actually a triangle) mod 2, read by rows: each entry is sum modulo 2 of 3 terms above it in previous row and one term above it two rows back.
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3
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1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 1
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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REFERENCES
| J. Goldwasser et al., The density of ones in Pascal's rhombus, Discrete Math., 204 (1999), 231-236.
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EXAMPLE
| 1; 1,1,1; 1,0,0,0,1; 1,1,0,1,0,1,1; ...
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CROSSREFS
| Cf. A059317, A059319, A059320, A007318.
Sequence in context: A014119 A084052 A130630 * A071029 A071030 A118109
Adjacent sequences: A059315 A059316 A059317 * A059319 A059320 A059321
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KEYWORD
| tabf,easy,nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), Jan 26 2001
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EXTENSIONS
| More terms from Larry Reeves (larryr(AT)acm.org), Jan 30 2001
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