A285216 - OEIS

A285216

Indices of primes in A000219.

2, 4, 11, 30, 32, 40, 50, 85, 100, 237, 381, 733, 805, 882, 1015, 1650, 2439, 3163, 3335, 3506, 3675, 4152, 4446, 4576, 5010, 5101, 6045, 6760, 7412, 8178, 8562, 10026, 10527, 10888, 12406, 12693, 13479, 16109, 16978, 17962, 20696, 22483, 25383, 31458, 38956

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OFFSET

1,1

LINKS

Vaclav Kotesovec, Table of n, a(n) for n = 1..82

EXAMPLE

11 is in the sequence because A000219(11) = 859 is prime.

MATHEMATICA

A000219 = Cases[Import["https://oeis.org/A000219/b000219.txt", "Table"], {_, _}][[All, 2]];

Flatten[Position[A000219, _?PrimeQ]] - 1 (* Jean-François Alcover, Sep 17 2020, as of todate, this only gives 27 terms *)

CROSSREFS

Cf. A000219, A035359, A046063.