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A316864 revision #15

A316864 Number of times 3 appears in decimal expansion of n. 9
0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,34
LINKS
Table of n, a(n) for n=0..104.
EXAMPLE
a(0) = 0 since the decimal representation of 0 does not contain the digit 3.
a(3) = 1 since 3 appears once in the decimal expansion of 3.
MATHEMATICA
Array[ DigitCount[#, 10, 3] &, 105, 0]
PROG
(PARI) a(n) = #select(x->x==3, digits(n)); \\ Michel Marcus, Jul 20 2018
CROSSREFS
Cf. A043501, A043502, A043503, A043504.
Cf. A055641, A268643, A316864, A316865, A316866, A316867, A316868, A316869, A102683.
Sequence in context: A157746 A349082 A281010 * A037820 A076493 A278907
Adjacent sequences: A316861 A316862 A316863 * A316865 A316866 A316867
KEYWORD
base,easy,nonn
AUTHOR
Robert G. Wilson v, Jul 15 2018
STATUS
editing

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Last modified August 30 13:06 EDT 2024. Contains 375543 sequences. (Running on oeis4.)