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A111316 a(n) = A109890(A111315(n)). 3
3, 6, 113573, 230801, 941071, 5166859, 30956561, 123081011, 3050325741, 14086296281, 60060345973, 120331687901, 316465918571, 634257678809, 8042099198501, 34761370800833, 134702376451061, 269979973606237 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

PROG

(PARI) s = 3; S = Set([1, 2]); i = 3; while (1, d = divisors(s); j = 1; while (setsearch(S, d[j]), j++); n = d[j]; if (n == s, print1(s, ", ")); s += n; S = setunion(S, Set(n)); i++); \\ David Wasserman, Jan 09 2009

CROSSREFS

Cf. A109890, A111315.

Sequence in context: A122182 A276701 A157596 * A297530 A222010 A152590

Adjacent sequences:  A111313 A111314 A111315 * A111317 A111318 A111319

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 04 2005

EXTENSIONS

More terms from David Wasserman, Jan 09 2009

STATUS

approved

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Last modified July 8 01:48 EDT 2020. Contains 335502 sequences. (Running on oeis4.)