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URL: https://oeis.org/A092447

⇱ A092447 - OEIS

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A092447
Concatenate odd primes in decreasing order.
6
3, 53, 753, 11753, 1311753, 171311753, 19171311753, 2319171311753, 292319171311753, 31292319171311753, 3731292319171311753, 413731292319171311753, 43413731292319171311753, 4743413731292319171311753, 534743413731292319171311753, 59534743413731292319171311753
OFFSET
1,1
LINKS
H. Marimutha, Smarandache Concatenated Type Sequences, Bulletin of Pure and Applied Sciences, Vol. 16 E(No.2), 1997; p. 225-226.
F. Smarandache, Collected papers, Vol. II, University of Kishinev, 1997.
MATHEMATICA
Table[FromDigits[Flatten[IntegerDigits/@Reverse[Prime[Range[2, n]]]]], {n, 2, 21}] (* Harvey P. Dale, Mar 01 2023 *)
PROG
(PARI) a(n)={fromdigits(concat([digits(k) | k<-Vecrev(primes(n+1))[1..n]]))} \\ Andrew Howroyd, Feb 12 2020
CROSSREFS
Primes in A092448 and their corresponding starting value in A100003. [Dmitry Kamenetsky, Mar 02 2009]
Cf. A065091 (odd primes).
Sequence in context: A099665 A173802 A001279 * A167217 A203561 A333563
KEYWORD
nonn,base
AUTHOR
Micha Fleuren (michafleuren(AT)hotmail.com), Mar 24 2004
EXTENSIONS
More terms from Ray Chandler, Mar 28 2004
Offset corrected by Michel Marcus, Aug 15 2017
Terms a(14) and beyond from Andrew Howroyd, Feb 12 2020
STATUS
approved