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 A101252 Primes that are a concatenation of 3, 5, 7 and a prime. 6
 35729, 35731, 35747, 35753, 35759, 35771, 35797, 357103, 357107, 357109, 357131, 357139, 357179, 357197, 357199, 357211, 357229, 357239, 357241, 357263, 357271, 357281, 357283, 357293, 357347, 357349, 357353, 357359, 357389, 357421, 357431 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Daniel Starodubtsev, Table of n, a(n) for n = 1..10000 Peter Alfeld, The 10,000 smallest prime numbers. EXAMPLE 35729 is member as it is concatenated from the primes 3,5,7 and 29. MATHEMATICA Select[ Table[ FromDigits[ Flatten[ IntegerDigits /@ {3, 5, 7, Prime[n]}]], {n, 95}], PrimeQ[ # ] &] (* Robert G. Wilson v, Dec 20 2004 *) CROSSREFS Cf. A101218, A101219, A101249, A101250, A101251. Sequence in context: A252920 A156405 A065611 * A133281 A326320 A216065 Adjacent sequences: A101249 A101250 A101251 * A101253 A101254 A101255 KEYWORD nonn,easy,base AUTHOR Parthasarathy Nambi, Dec 16 2004 EXTENSIONS Extended by Ray Chandler and Robert G. Wilson v, Dec 22 2004 STATUS approved

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Last modified March 24 15:37 EDT 2023. Contains 361479 sequences. (Running on oeis4.)