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A102135 Iccanobirt prime indices (5 of 15): Indices of prime numbers in A102115. 1

%I #13 Apr 10 2020 15:46:55

%S 4,6,7,19,46,613,1146,1500,1982,2590,7278,13714,15929

%N Iccanobirt prime indices (5 of 15): Indices of prime numbers in A102115.

%C No more terms through 5000.

%C a(14) > 50000. - _Robert Price_, Nov 08 2018

%F A102115(a(n)) = A102155(n).

%t a[n_] := a[n] =

%t IntegerReverse[a[n - 1]] + a[n - 2] + IntegerReverse[a[n - 3]];

%t a[0] = 0; a[1] = 0; a[2] = 1;

%t Select[Range[0, 5000], PrimeQ[a[#]] &] (* _Robert Price_, Apr 10 2020 *)

%Y Cf. A000040, A102115, A102131-A102145.

%K nonn,more,base

%O 1,1

%A _Jonathan Vos Post_ and _Ray Chandler_, Dec 31 2004

%E a(11)-a(13) from _Robert Price_, Nov 08 2018

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Last modified July 14 09:01 EDT 2024. Contains 374318 sequences. (Running on oeis4.)