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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
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
Sequence in context: A170742 A218725 A136285 * A118338 A171328 A097778
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.)