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A276138 Numbers without the decimal digits 1, 3, 5 and 7. 2
0, 2, 4, 6, 8, 9, 20, 22, 24, 26, 28, 29, 40, 42, 44, 46, 48, 49, 60, 62, 64, 66, 68, 69, 80, 82, 84, 86, 88, 89, 90, 92, 94, 96, 98, 99, 200, 202, 204, 206, 208, 209, 220, 222, 224, 226, 228, 229, 240, 242, 244, 246, 248, 249, 260, 262, 264, 266 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

FORMULA

a(6n-6+k) = 10 a(n) + a(k) for k = 1..6. - Robert Israel, Aug 24 2016

MAPLE

S:= [0]:

for d from 1 to 4 do S:= map(t ->  seq(10*t+i, i=[0, 2, 4, 6, 8, 9]), S) od:

S; # Robert Israel, Aug 24 2016

MATHEMATICA

Select[Select[Select[Select[Range[0, 400], FreeQ[IntegerDigits@#, 1] &], FreeQ[IntegerDigits@#, 3] &], FreeQ[IntegerDigits@#, 5] &], FreeQ[IntegerDigits@#, 7] &]

PROG

(MAGMA) [n: n in [0..500] | IsEmpty(Set([1, 3, 5, 7]) meet Set(Intseq(n)))];

CROSSREFS

Cf. A168501, A276137.

Sequence in context: A227979 A080223 A156759 * A114973 A004522 A004521

Adjacent sequences:  A276135 A276136 A276137 * A276139 A276140 A276141

KEYWORD

nonn,base,easy

AUTHOR

Vincenzo Librandi, Aug 22 2016

STATUS

approved

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Last modified June 5 11:52 EDT 2020. Contains 334840 sequences. (Running on oeis4.)