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A043309 a(n)=A033003(n)/6. 1
1, 2, 3, 4, 25, 27, 28, 29, 50, 51, 53, 54, 75, 76, 77, 79, 100, 101, 102, 103, 626, 627, 628, 629, 675, 676, 678, 679, 700, 701, 702, 704, 725, 726, 727, 728, 1251, 1252, 1253, 1254, 1275, 1277, 1278, 1279, 1325, 1326, 1327, 1329 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Also: Numbers which, written in base 25, have all digits less than 5 and no two adjacent digits equal. - M. F. Hasler, Feb 03 2014
LINKS
PROG
(PARI) is_A043309(n)=(n=[n])&&!until(!n[1], ((n=divrem(n[1], 25))[2]<5 && n[1]%5!=n[2])||return) \\ M. F. Hasler, Feb 03 2014
CROSSREFS
Sequence in context: A080613 A055006 A139050 * A104386 A171558 A044906
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified April 18 03:33 EDT 2024. Contains 371767 sequences. (Running on oeis4.)