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A145469 A positive integer n is included if d(n) = d(n-1)+d(n-2), where d(n) is the number of divisors of n. +0
2
12, 30, 40, 54, 63, 75, 80, 88, 135, 156, 165, 174, 208, 255, 260, 279, 285, 318, 328, 368, 372, 405, 423, 455, 460, 483, 490, 495, 546, 550, 552, 555, 585, 654, 726, 732, 750, 795, 836, 846, 870, 915, 935, 940, 952, 996, 1012, 1048, 1068, 1148, 1173, 1196 (list; graph; listen)
OFFSET

1,1

LINKS

Leroy Quet, Home Page (listed in lieu of email address)

MAPLE

with(numtheory): a:=proc(n) if tau(n)=tau(n-1)+tau(n-2) then n else end if end proc: seq(a(n), n=3..1300); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Oct 23 2008]

CROSSREFS

A145470

Sequence in context: A050689 A115912 A083096 this_sequence A024364 A093507 A145470

Adjacent sequences: A145466 A145467 A145468 this_sequence A145470 A145471 A145472

KEYWORD

nonn

AUTHOR

Leroy Quet Oct 11 2008

EXTENSIONS

Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Oct 23 2008

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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