A316869 Number of times 8 appears in decimal expansion of n.

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, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0

Offset

0,89

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 8.
a(8) = 1 since 8 appears once in the decimal expansion of 8.

Mathematica

Array[ DigitCount[#, 10, 8] &, 105, 0]

Prog

(PARI) a(n) = #select(x->x==8, digits(n)); \\ Michel Marcus, Jul 20 2018

Crossrefs

Cf. A043521, A043522, A043523, A043524.

Cf. A055641, A268643, A316863, A316864, A316865, A316866, A316867, A316868, A102683.

Sequence in context: A335824 A297231 A056620 * A351961 A258772 A178401

Adjacent sequences: A316866 A316867 A316868 * A316870 A316871 A316872

Keyword

base,easy,nonn

Author

Robert G. Wilson v, Jul 15 2018

Status

approved