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A139120 Primes that show the distribution of prime numbers using "0" for primes and "1" for nonprime numbers. 6
10010101, 1001010111010111, 100101011101011101011101111101011111011101011101111101111101011111011101011111011101111101111111011101011101011101111111111111011101111101011111111101011111011111011101111101111, 100101011101011101011101111101011111011101011101111101111101011111011101011111011101111101111111011101011101011101111111111111011101111101011111111101011111011111011101111101111101011111111101011101011111111 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Primes in A118256.
For n = 1..7, the number of digits in a(n) is 8, 16, 177, 207, 872, 1395, 2114 (no more through 10000). - Jon E. Schoenfield, Apr 13 2018
LINKS
Caldwell and Honaker, Prime Curios!: 10010101
MATHEMATICA
A118255[n_] := Module[{},
If[n == 1, A118255[1] = 1,
If[PrimeQ[n], A118255[n] = 2 A118255[n - 1],
A118255[n] = 2 A118255[n - 1] + 1]]];
Select[Table[FromDigits[IntegerDigits[A118255[n], 2]], {n, 1, 1000}], PrimeQ] (* Robert Price, Apr 03 2019 *)
CROSSREFS
Sequence in context: A072144 A087510 A173002 * A210893 A107273 A106605
KEYWORD
nonn,base
AUTHOR
Omar E. Pol, Apr 11 2008
EXTENSIONS
Extended by Charles R Greathouse IV, Jul 27 2009
STATUS
approved

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Last modified March 19 01:34 EDT 2024. Contains 370952 sequences. (Running on oeis4.)