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 A114924 Primes p such that pi(p) is obtained by dropping one of the digits of p in decimal expansion. 3
 17, 12491, 14723, 42437, 57089, 58193, 61051, 63131, 63347, 64553, 64567, 64577, 64591, 64601, 64661, 64679, 64951, 65071, 65173, 65293, 65881, 66863, 69931, 79817, 99551, 129083, 165103, 263071, 284833, 1407647, 1515259, 4303027 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS If n>31 then we can get pi(a(n)) by dropping the first digit of a(n). Next term is greater than prime(20000000). LINKS EXAMPLE 95517973 is in the sequence because 95517973 is prime and pi(95517973)=5517973. MATHEMATICA Do[h=IntegerDigits[Prime@n]; l=Length[h]; If[MemberQ[Table[ FromDigits[Drop[h, {k}]], {k, l}], n], Print[Prime@n]], {n, 20000000}] CROSSREFS Cf. A114924. Sequence in context: A166326 A203678 A257044 * A300596 A308962 A191964 Adjacent sequences:  A114921 A114922 A114923 * A114925 A114926 A114927 KEYWORD fini,base,nonn AUTHOR Farideh Firoozbakht, Jan 14 2006 STATUS approved

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Last modified October 17 01:03 EDT 2019. Contains 328103 sequences. (Running on oeis4.)