id:A088191 - OEIS Search Results

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First differences of A088190.

+0
8

0, 3, 0, 5, 3, 4, 1, 1, 10, 0, 8, 4, 1, 1, 10, 5, 3, 5, -1, 8, 4, 5, 7, 8, 4, 0, 5, 3, 4, 12, 5, 7, 1, 11, 0, 8, 5, 1, 10, 5, 3, 4, 8, 4, 0, 13, 11, 5, 3, 4, 0, 8, 9, 7, 2, 10, 0, 8, 4, 1, 11, 13, -5, 12, 4, 13, 7, 9, 3, 4, 0, 12, 8, 5, 1, 10, 8, 4, 8, 9, 3, 4, 8, 4, 5, 7, 8, 4, 0, 5, 1, 18, 5, 8, 1, 10, 12, 1, 19 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`Seemingly the difference sequence is mostly positive. There are special characteristic features where it is non-positive. (See A088193-A088195)`
	PROGRAM	`(PARI) qrp_d(to)= {/* Difference sequence of the largest QR modulo the primes */ local(m, k=1, p, v=[]); for(i=2, to, m=1; p=prime(i); j=2; while((j<=(p-1)/2)&&(m<p-1), m=max(m, (j^2)%p); j++); v=concat(v, m-k); k=m); print(v) }`
	CROSSREFS	`Cf. A088190, A088192, A088193, A088194, A088195.` `Sequence in context: A007431 A098496 A011293 this_sequence A108500 A076109 A078788` `Adjacent sequences: A088188 A088189 A088190 this_sequence A088192 A088193 A088194`
	KEYWORD	`easy,sign`
	AUTHOR	`Ferenc Adorjan (fadorjan(AT)freemail.hu), Sep 22 2003`

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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