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A023773
Metadromes: digits in base 4 are in strict ascending order.
0
0, 1, 2, 3, 6, 7, 11, 27
OFFSET
1,3
CROSSREFS
Sequence in context: A062404 A032875 A032842 * A115889 A101319 A182538
KEYWORD
nonn,base,fini,full,easy
STATUS
approved