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A235498 For k in {2,3,...,9} define a sequence as follows: a(0)=0; for n>=0, a(n+1)=a(n)+1, unless a(n) ends in k, in which case a(n+1) is obtained by replacing the last digit of a(n) with the digit(s) of k^2. This is k(2). 8
0, 1, 2, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24, 25, 26, 27, 28, 29, 30, 31, 32, 34, 35, 36, 37, 38, 39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 54, 55, 56, 57, 58, 59, 60, 61, 62, 64, 65, 66, 67, 68, 69, 70, 71, 72, 74 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

An alternative and simpler definition: numbers not ending in 3. - Charles R Greathouse IV, Feb 07 2014

LINKS

Table of n, a(n) for n=0..66.

FORMULA

G.f.: (x^9 +x^8 +x^7 +x^6 +x^5 +x^4 +2*x^3 +x^2 +x) / (x^10 -x^9 -x +1). - Alois P. Heinz, Feb 07 2014

CROSSREFS

Subsequence of A052405.

Cf. A235499, A237341 - A237346.

Sequence in context: A083794 A133016 A026503 * A052405 A039212 A039221

Adjacent sequences:  A235495 A235496 A235497 * A235499 A235500 A235501

KEYWORD

nonn,base,easy

AUTHOR

Vincenzo Librandi, Feb 06 2014

EXTENSIONS

Definition by N. J. A. Sloane, Feb 07 2014

STATUS

approved

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Last modified April 20 19:13 EDT 2021. Contains 343137 sequences. (Running on oeis4.)