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A023785
Katadromes: digits in base 3 are in strict descending order.
0
0, 1, 2, 3, 6, 7, 21
OFFSET
1,3
CROSSREFS
Sequence in context: A119746 A328023 A265481 * A050581 A352934 A073317
KEYWORD
nonn,base,fini,full,easy
STATUS
approved