id:A109308 - OEIS Search Results

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Lesser emirps (primes whose digit reversal is a larger prime).

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13, 17, 37, 79, 107, 113, 149, 157, 167, 179, 199, 337, 347, 359, 389, 709, 739, 769, 1009, 1021, 1031, 1033, 1061, 1069, 1091, 1097, 1103, 1109, 1151, 1153, 1181, 1193, 1213, 1217, 1223, 1229, 1231, 1237, 1249, 1259, 1279, 1283, 1381, 1399, 1409, 1429 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Cf. A006567 Emirps (primes whose digit reversal is a different prime), A109309 Larger emirps (primes whose digit reversal is a lesser prime).`
	MATHEMATICA	`dr[n_]:=FromDigits[Reverse[IntegerDigits[n]]]; Select[Prime[Range[1000]], PrimeQ[dr[ # ]]&&dr[ # ]>#&]`
	CROSSREFS	`Cf. A006567, A109309.` `Sequence in context: A126808 A053009 A069485 this_sequence A086402 A039290 A045267` `Adjacent sequences: A109305 A109306 A109307 this_sequence A109309 A109310 A109311`
	KEYWORD	`base,nonn`
	AUTHOR	`Zak Seidov (zakseidov(AT)yahoo.com), Jun 25 2005`

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.

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