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A067248
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Numbers n such that digits of prime(n) end in n.
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3
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7, 9551, 303027, 440999, 968819, 5517973, 27737957, 93230839, 46492090901, 426836115943, 732382677641, 4895576080181
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| There is no further term up to 115000000. - Farideh Firoozbakht (mymontain(AT)yahoo.com), Jan 01 2007
a(13) > pi(10^15). [From Donovan Johnson (donovan.johnson(AT)yahoo.com), May 08 2010]
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EXAMPLE
| Prime(968819) = 14968819 which ends in 968819, so 968819 is a term of the sequence.
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MATHEMATICA
| (*returns true if a ends with b, false o.w.*) f[a_, b_] := Module[{c, d, e, g, h, i, r}, r = False; c = ToString[a]; d = ToString[b]; e = StringLength[c]; g = StringPosition[c, d]; h = Length[g]; If[h > 0, i = g[[h]]; If[i[[2]] == e, r = True]]; r]; Do[If[f[Prime[n], n], Print[n]], {n, 1, 10^6}]
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CROSSREFS
| Corresponding primes are in A046883.
Cf. A046883, A068575, A075902.
Sequence in context: A201846 A116631 A074489 * A152007 A131676 A203685
Adjacent sequences: A067245 A067246 A067247 * A067249 A067250 A067251
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KEYWORD
| base,nonn
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AUTHOR
| Joseph L. Pe (joseph_l_pe(AT)hotmail.com), Feb 20 2002
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EXTENSIONS
| One more term from Zak Seidov (zakseidov(AT)yahoo.com), Sep 27 2002
Two more terms from Farideh Firoozbakht, Jan 01 2007
a(9)-a(12) from Donovan Johnson (donovan.johnson(AT)yahoo.com), May 08 2010
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