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 A088290 Prime numbers in which the sum of the external digits = the sum of the internal digits. 0
 1021, 1087, 1201, 1223, 1289, 1447, 1559, 1627, 2053, 2143, 2389, 2503, 2659, 2749, 3041, 3221, 3467, 3557, 3917, 4051, 4073, 4231, 4253, 4297, 4523, 4567, 4657, 4679, 4703, 5443, 5623, 5689, 5779, 5869, 6521, 6701, 6857, 6947, 7193, 7283, 7351, 7621 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 LINKS EXAMPLE 1021 is a member 1+1 = 0+2 = 2.. MATHEMATICA edidQ[n_]:=Module[{idn=IntegerDigits[n]}, idn[[1]]+idn[[-1]]==Total[Most[ Rest[idn]]]]; Select[Prime[Range[169, 3000]], edidQ] (* Harvey P. Dale, Apr 20 2012 *) CROSSREFS Cf. A076167. Sequence in context: A228625 A356947 A214732 * A209620 A179032 A179033 Adjacent sequences: A088287 A088288 A088289 * A088291 A088292 A088293 KEYWORD base,nonn AUTHOR Amarnath Murthy, Sep 29 2003 EXTENSIONS More terms from David Wasserman, Aug 04 2005 STATUS approved

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Last modified March 31 17:56 EDT 2023. Contains 361672 sequences. (Running on oeis4.)