OFFSET
1,2
COMMENTS
Conjecture: subsequence of A019505.
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..223 (computed from the 10000 term b-file of A002182 prepared from Flammenkamp's data)
EXAMPLE
6 is not in the sequence because 6 is not a multiple of 4, the previous term.
PROG
(PARI)
sublist_of_first_proper_multiple_terms_of(v) = { my(u=v[1], lista=List(u)); for(i=2, #v, if((v[i]>u)&&!(v[i]%u), u = v[i]; listput(lista, u))); Vec(lista); };
v133411 = sublist_of_first_proper_multiple_terms_of(v002182); \\ v002182 contains the terms of A002182.
A133411(n) = v133411[n]; \\ Antti Karttunen, Jan 10 2020
CROSSREFS
KEYWORD
nonn
AUTHOR
J. Lowell, Nov 25 2007
EXTENSIONS
a(12)-a(24) from Donovan Johnson, Sep 09 2008
STATUS
approved