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A238940
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Powers of 4 without the digit '0' in their decimal expansion.
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14
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1, 4, 16, 64, 256, 16384, 65536, 262144, 16777216, 268435456, 4294967296, 17179869184, 68719476736, 4722366482869645213696, 75557863725914323419136, 77371252455336267181195264
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OFFSET
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1,2
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COMMENTS
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Conjectured to be finite and complete. See the OEIS wiki page for further information, references and links.
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LINKS
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FORMULA
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MATHEMATICA
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Select[4^Range[0, 50], DigitCount[#, 10, 0]==0&] (* Harvey P. Dale, Aug 31 2021 *)
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PROG
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(PARI) for(n=0, 99, vecmin(digits(4^n))&& print1(4^n", "))
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CROSSREFS
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For the zeroless numbers (powers x^n), see A238938, A238939, A238940, A195948, A238936, A195908, A195946, A195945, A195942, A195943.
For the corresponding exponents, see A007377, A008839, A030700, A030701, A030702, A030703, A030704, A030705, A030706, A195944.
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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Keyword:fini removed by Jianing Song, Jan 28 2023 as finiteness is only conjectured.
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STATUS
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approved
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