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A088200
Members of the difference sequence (A088197) of LQnR(p_n) (A088196) where it is <= 0.
8
-2, -2, -4, -2, -2, -4, -2, -4, -2, 0, -4, -4, -4, -2, -4, -2, -2, -10, -2, -4, 0, -4, -4, -8, -10, -2, -4, 0, -4, -2, -4, -4, -4, -2, -4, 0, -4, -6, -4, 0, -8, -4, -2, -2, 0, -4, -4, -4, -10, -2, -14, -2, 0, 0, -6, -4, -4, 0, -10, -2, 0, -4, -10, -4, -2, 0, -4, -2, -2, -6, -2, -4, 0, -2, -4, -4, -10, -8, -2, 0, 0, -8, -4, -8, -4, 0, -2
OFFSET
1,1
COMMENTS
The members of the sequence are always even (conjectured!).
PROG
(PARI) qnrp_d_nm(n)= {/* The difference sequence of LQnR where the sequence of the largest QnR modulo the primes is nonmonotonic */ local(k=1, m, p, fl, jj, j, v=[]); for(i=2, 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--); if(m-k<=0, v=concat(v, m-k)); k=m); print(v)}
CROSSREFS
KEYWORD
sign
AUTHOR
Ferenc Adorjan (fadorjan(AT)freemail.hu), Sep 23 2003
STATUS
approved