

A098732


Consider the sequence {b(n), n >= 1} of digits of the integers: 0 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0... (A033307); a(n) = n  b(n).


2



1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 10, 12, 12, 13, 14, 14, 16, 15, 18, 16, 20, 17, 22, 18, 24, 19, 26, 20, 28, 21, 29, 32, 31, 33, 33, 34, 35, 35, 37, 36, 39, 37, 41, 38, 43, 39, 45, 40, 47, 41, 48, 52, 50, 53, 52, 54, 54, 55, 56, 56, 58, 57, 60, 58, 62, 59, 64, 60, 66, 61, 67, 72, 69
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OFFSET

1,11


LINKS



MATHEMATICA

First[#]Last[#]&/@Module[{ch=Flatten[IntegerDigits/@Range[ 0, 50]]}, Thread[ {Range[Length[ch]], ch}]] (* Harvey P. Dale, Oct 15 2014 *)


CROSSREFS



KEYWORD

base,easy,nonn


AUTHOR



EXTENSIONS



STATUS

approved



