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 A244075 Numbers of nonprime digits between successive single-digit primes in the decimal expansion of e (A001113). 1
 0, 2, 3, 2, 3, 0, 0, 0, 0, 2, 1, 1, 1, 0, 0, 2, 2, 0, 0, 0, 0, 1, 2, 4, 1, 0, 6, 1, 0, 0, 0, 2, 2, 1, 0, 0, 0, 1, 0, 2, 0, 1, 1, 1, 1, 0, 0, 4, 0, 1, 0, 3, 3, 0, 2, 1, 2, 3, 2, 0, 3, 3, 0, 0, 0, 3, 0, 1, 1, 0, 2, 1, 1, 1, 0, 2, 0, 0, 0, 2, 0, 2, 3, 1, 0, 0, 0, 1, 4, 0, 0, 2, 0, 0, 7, 0, 0, 1, 3, 1, 1, 1, 1, 8, 6 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Alois P. Heinz, Table of n, a(n) for n = 1..10000 EXAMPLE ____|_|..|...|..|...|||||..|.|.|.|||..|..|||||.|..|.... e = 2.7182818284590452353602874713526624977572470936... The bars in the diagram above indicate the positions of prime digits in e, the dots indicate nonprime digits.  The sequence is thus generated by counting the dots between successive bars: 0, 2, 3, ... . MATHEMATICA If[#[[1]]==0, PadRight[{}, Length[#]-1, 0], Length[#]]&/@Split[If[PrimeQ[ #], 0, 1]&/@RealDigits[E, 10, 300][[1]]]//Flatten (* Harvey P. Dale, Aug 29 2021 *) CROSSREFS Cf. A001113. Sequence in context: A123703 A105436 A266911 * A059905 A295301 A308133 Adjacent sequences:  A244072 A244073 A244074 * A244076 A244077 A244078 KEYWORD nonn,base AUTHOR Philip Mizzi, Jun 19 2014 STATUS approved

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Last modified August 15 02:47 EDT 2022. Contains 356122 sequences. (Running on oeis4.)