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A036261
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Triangle of numbers arising from Gilbreath's conjecture: successive absolute differences of primes.
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5
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1, 1, 2, 1, 0, 2, 1, 2, 2, 4, 1, 2, 0, 2, 2, 1, 2, 0, 0, 2, 4, 1, 2, 0, 0, 0, 2, 2, 1, 2, 0, 0, 0, 0, 2, 4, 1, 2, 0, 0, 0, 0, 0, 2, 6, 1, 0, 2, 2, 2, 2, 2, 2, 4, 2, 1, 0, 0, 2, 0, 2, 0, 2, 0, 4, 6, 1, 0, 0, 0, 2, 2, 0, 0, 2, 2, 2, 4, 1, 0, 0, 0, 0, 2, 0, 0, 0, 2, 0, 2, 2, 1, 0, 0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 2, 4
(list; table; graph; refs; listen; history; internal format)
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OFFSET
| 1,3
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REFERENCES
| R. K. Guy, Unsolved Problems Number Theory, A10.
C. A. Pickover, The Math Book, Sterling, NY, 2009; see p. 410.
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LINKS
| T. D. Noe, Rows n=1..100 of triangle, flattened
A. M. Odlyzko, Iterated absolute values of differences of consecutive primes, Math. Comp. 61 (1993), 373-380.
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MATHEMATICA
| max = 15; triangle = Rest[ NestList[ Abs[ Differences[#] ]& , Prime[ Range[max] ], max] ]; Flatten[ Table[ triangle[[n-k+1, k]], {n, 1, max-1}, {k, 1, n}]] (* From Jean-François Alcover, Jan 23 2012 *)
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CROSSREFS
| See A036262, which is the main entry for this array.
Sequence in context: A190427 A035443 A180430 * A091917 A025657 A025686
Adjacent sequences: A036258 A036259 A036260 * A036262 A036263 A036264
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KEYWORD
| tabl,easy,nice,nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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EXTENSIONS
| More terms from Naohiro Nomoto (6284968128(AT)geocities.co.jp), May 22 2001
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