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 A225093 a(1)=2, a(2)=3, for n>=3, a(n) is the n-th number which is obtained by application of Eratosthenes-like sieve to A225091. 11
 2, 3, 7, 13, 5, 11, 31, 43, 37, 29, 73, 79, 19, 41, 97, 59, 103, 127, 71, 157, 17, 163, 89, 23, 107, 211, 181, 241, 199, 131, 67, 101, 61, 271, 277, 149, 313, 307, 47, 367, 173, 397, 331, 409, 179, 197, 191, 457, 251, 499, 239, 233, 487, 139, 547, 523, 571, 151 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS We conjecture that every term is prime; moreover, we conjecture that the sequence is a permutation of the sequence of all primes. - Vladimir Shevelev, Dec 17 2014 LINKS Peter J. C. Moses, Table of n, a(n) for n = 1..2000 MATHEMATICA Flatten[{{2, 3}, DeleteDuplicates[Select[Map[#/(2^IntegerExponent[#, 2])&[Total[IntegerDigits[7^#]]]&, Range[200]], PrimeQ]]}] (* Peter J. C. Moses, Apr 27 2013 *) CROSSREFS Cf. A000040, A221858, A225017, A225039, A225040, A225091, A251964, A252280, A252281, A252282, A252283. Sequence in context: A084423 A068134 A249051 * A278007 A081256 A084955 Adjacent sequences:  A225090 A225091 A225092 * A225094 A225095 A225096 KEYWORD nonn AUTHOR Vladimir Shevelev, Apr 27 2013 EXTENSIONS More terms from Peter J. C. Moses, Apr 27 2013 STATUS approved

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Last modified June 25 17:47 EDT 2019. Contains 324353 sequences. (Running on oeis4.)