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A031100 Write 2n-1 in base 9 and juxtapose. 10
1, 3, 5, 7, 1, 0, 1, 2, 1, 4, 1, 6, 1, 8, 2, 1, 2, 3, 2, 5, 2, 7, 3, 0, 3, 2, 3, 4, 3, 6, 3, 8, 4, 1, 4, 3, 4, 5, 4, 7, 5, 0, 5, 2, 5, 4, 5, 6, 5, 8, 6, 1, 6, 3, 6, 5, 6, 7, 7, 0, 7, 2, 7, 4, 7, 6, 7, 8, 8, 1, 8, 3, 8, 5, 8, 7, 1, 0, 0, 1, 0, 2, 1, 0, 4, 1, 0, 6, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
Table[IntegerDigits[2n-1, 9], {n, 50}]//Flatten (* Harvey P. Dale, Jul 22 2019 *)
CROSSREFS
Sequence in context: A162538 A324990 A084712 * A031057 A133069 A192327
KEYWORD
nonn,base
AUTHOR
STATUS
approved

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Last modified March 18 22:56 EDT 2024. Contains 370952 sequences. (Running on oeis4.)