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Search: id:A059318
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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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+0
4
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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; listen)
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OFFSET
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0,1
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REFERENCES
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J. Goldwasser et al., The density of ones in Pascal's rhombus, Discrete Math., 204 (1999), 231-236.
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EXAMPLE
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1; 1,1,1; 1,0,0,0,1; 1,1,0,1,0,1,1; ...
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CROSSREFS
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Cf. A059317, A059319, A059320, A007318.
Sequence in context: A014119 A084052 A130630 this_sequence A118109 A104037 A014044
Adjacent sequences: A059315 A059316 A059317 this_sequence A059319 A059320 A059321
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KEYWORD
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tabf,easy,nonn
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Jan 26 2001
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EXTENSIONS
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More terms from Larry Reeves (larryr(AT)acm.org), Jan 30 2001
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