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A007092 Numbers in base 6.
(Formerly M0532)
+0
20
0, 1, 2, 3, 4, 5, 10, 11, 12, 13, 14, 15, 20, 21, 22, 23, 24, 25, 30, 31, 32, 33, 34, 35, 40, 41, 42, 43, 44, 45, 50, 51, 52, 53, 54, 55, 100, 101, 102, 103, 104, 105, 110, 111, 112, 113, 114, 115, 120, 121, 122, 123, 124, 125, 130, 131, 132, 133, 134, 135, 140, 141 (list; graph; listen)
OFFSET

0,3

REFERENCES

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

FORMULA

a(0)=0 a(n)=10*a(n/6) if n==0 (mod 6) a(n)=a(n-1)+1 otherwise. - Benoit Cloitre, Dec 22, 2002

MATHEMATICA

Table[ FromDigits[ IntegerDigits[n, 6]], {n, 0, 65}]

PROGRAM

(PARI) a(n)=if(n<1, 0, if(n%4, a(n-1)+1, 10*a(n/6)))

CROSSREFS

Cf. A000042, A007088, A007089, A007090, A007091, A007093, A007094 & A007095.

Cf. A057436.

Sequence in context: A161657 A072701 A037473 this_sequence A047596 A089964 A066996

Adjacent sequences: A007089 A007090 A007091 this_sequence A007093 A007094 A007095

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Robert G. Wilson v (rgwv(AT)rgwv.com)

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Last modified December 6 13:45 EST 2009. Contains 170429 sequences.


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