



3, 8, 18, 36, 72, 420, 720, 840, 1260, 3360, 7560, 20160, 554400, 2882880, 4324320, 36756720, 6983776800
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OFFSET

1,1


LINKS

Table of n, a(n) for n=1..17.


EXAMPLE

36 is in this sequence because the only number <= 36 that disqualifies 36 from being in A094783 is 24; its sixth smallest divisor is 8 in contrast with 9 for 36.


PROG

(PARI) is(n)=my(d=divisors(n), v, miss); for(m=1, n, v=divisors(m); if(vecmin( vector(min(#d, #v), i, v[i]d[i]))<0, if(miss, return(0), miss=1))); miss==1 \\ Charles R Greathouse IV, Apr 29 2014


CROSSREFS

Cf. A094783, A137849.
Sequence in context: A004035 A169763 A227161 * A332706 A000234 A136376
Adjacent sequences: A241077 A241078 A241079 * A241081 A241082 A241083


KEYWORD

nonn,more


AUTHOR

J. Lowell, Apr 15 2014


EXTENSIONS

a(6)a(11) from A137849 bfile by Michel Marcus, Apr 16 2014
a(12)a(17) from Charles R Greathouse IV, Apr 29 2014


STATUS

approved



