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A165432 Numbers n such that the concatenation of n^0 n^1 n^2 n^3 n^4 is prime. 1
23, 51, 61, 113, 137, 179, 183, 203, 217, 229, 271, 273, 299, 307, 317, 331, 361, 399, 449, 467, 481, 633, 699, 701, 713, 797, 819, 833, 947, 993, 1021, 1039, 1073, 1117, 1187, 1193, 1269, 1371, 1407, 1413, 1427, 1437, 1451, 1453, 1467, 1469, 1511, 1521 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

EXAMPLE

Example 23 is in the list because the concatenation of 23^0 23^1 23^2 23^3 23^4 is 12352912167279841 and this number is prime

MATHEMATICA

Select[Range[2000], PrimeQ[FromDigits[Flatten[{IntegerDigits[#^0], IntegerDigits[#^1], IntegerDigits[#^2], IntegerDigits[#^3], IntegerDigits[#^4]}]]] &]

Select[Range[2000], PrimeQ[FromDigits[Flatten[IntegerDigits/@(#^Range[0, 4])]]]&] (* Harvey P. Dale, Dec 18 2019 *)

CROSSREFS

Sequence in context: A185187 A157095 A281266 * A067625 A140689 A172034

Adjacent sequences: A165429 A165430 A165431 * A165433 A165434 A165435

KEYWORD

nonn,base

AUTHOR

Claudio Meller, Jul 05 2011

STATUS

approved

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Last modified December 1 11:19 EST 2022. Contains 358468 sequences. (Running on oeis4.)