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A082124 Smallest difference>1 between d and p/d for any divisor d of the partial product p of the sequence, starting with 9. 1
9, 8, 6, 6, 6, 36, 39, 618, 4932, 60192, 3075084, 349550100, 15219084556800, 13331385308976969710 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

PROG

(PARI) p=9:for(n=1, 50, v=divisors(p):r=sqrt(p):t=0:for(k=1, matsize(v)[2], if(v[k]>=r, t=k:break)): if(v[t]^2==p, u=t, u=t-1): if(v[t]-v[u]<2, u=u-1:t=t+1):print1(v[t]-v[u]", "):p=p*(v[t]-v[u]))

CROSSREFS

Cf. A082120, A082123, A003681 (starts with 2, 3), A082125.

Sequence in context: A105415 A197015 A155920 * A132721 A097906 A086053

Adjacent sequences:  A082121 A082122 A082123 * A082125 A082126 A082127

KEYWORD

nonn,hard,more

AUTHOR

Ralf Stephan (ralf(AT)ark.in-berlin.de), Apr 04 2003

EXTENSIONS

a(14) from Herman Jamke (hermanjamke(AT)fastmail.fm), Nov 02 2006

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Last modified February 16 11:51 EST 2012. Contains 205908 sequences.