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A088197 First differences of A088196. 7
1, 3, 4, 1, 3, 4, 4, 5, 3, 5, 3, 4, 4, 5, 7, 1, 7, 4, -2, 10, 4, 4, 6, 7, 3, 4, 1, 3, 16, 4, 4, 4, 9, 3, 5, 7, 4, 5, 7, 1, 11, -2, 7, 3, 12, 12, 4, 1, 3, 8, -4, 16, 4, 8, 5, 3, 5, 3, 4, 9, 15, 4, -2, 7, 15, 2, 14, 1, 3, 8, 8, 5, 7, 4, 5, 8, 3, 4, 16, 1, 11, -2, 10, 4, 4, 6, 7, 3, 4, 12, 8, 4, 8, 4, 5, 11, 4, 17 (list; graph; refs; listen; history; text; internal format)
OFFSET

2,2

LINKS

Table of n, a(n) for n=2..99.

PROG

(PARI) qnrp_d(n)= { /* The difference sequence of the sequence with the largest QnR modulo the primes */ local(k=1, m, p, fl, jj, j, v=[]); for(i=3, n, m=0; p=prime(i); jj=0; fl=2^p-1; j=2; while((j<=(p-1)/2), jj=(j^2)%p; fl-=2^jj; j++); j=p-1; while(m==0, if(bitand(2^j, fl), m=j); j--); v=concat(v, m-k); k=m); print(v)}

CROSSREFS

Cf. A088191, A088196, A088198, A088199, A088200, A088201.

Sequence in context: A101667 A117378 A278518 * A087517 A128529 A205547

Adjacent sequences:  A088194 A088195 A088196 * A088198 A088199 A088200

KEYWORD

easy,sign

AUTHOR

Ferenc Adorjan (fadorjan(AT)freemail.hu), Sep 23 2003

STATUS

approved

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Last modified July 30 08:52 EDT 2021. Contains 346355 sequences. (Running on oeis4.)