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 A114926 Numbers n such that pi(n)=reversal(n)-n. 2
 1, 23, 526, 536, 1802, 4735, 17191, 38524, 235652, 36235483, 1086331411, 5316125655, 7202194357, 49294058315, 327040088933 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS a(16) > 10^13. - Giovanni Resta, Aug 08 2019 LINKS Table of n, a(n) for n=1..15. EXAMPLE 36235483 is in the sequence because pi(36235483)=2217780= 38453263-36235483=reversal(36235483)-36235483. MATHEMATICA Do[If[PrimePi[n]==FromDigits[Reverse[IntegerDigits[n]]] -n, Print[n]], {n, 30000000}] CROSSREFS Cf. A072393, A100415. Sequence in context: A170742 A218725 A136285 * A118338 A171328 A097778 Adjacent sequences: A114923 A114924 A114925 * A114927 A114928 A114929 KEYWORD nonn,base,more AUTHOR Farideh Firoozbakht, Feb 03 2006 EXTENSIONS a(11)-a(15) from Giovanni Resta, Aug 08 2019 STATUS approved

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Last modified June 22 02:27 EDT 2024. Contains 373561 sequences. (Running on oeis4.)