Amiram Eldar, <a href="/A194954/b194954_1.txt">Table of n, a(n) for n = 1..10000</a>

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OEIS Server: Installed first b-file as b194954.txt.

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Amiram Eldar, <a href="/A194954/b194954_1.txt">Table of n, a(n) for n = 1..10000</a>

2, 3, 5, 7, 11, 13, 17, 23, 29, 31, 37, 43, 47, 53, 59, 67, 71, 73, 79, 97, 101, 107, 113, 137, 139, 151, 157, 173, 179, 191, 199, 229, 233, 239, 241, 271, 277, 283, 307, 311, 313, 331, 337, 349, 367, 379, 383, 433, 439, 457, 463, 467, 479, 487, 491, 521, 557

a[1] = 2; a[n_] := a[n] = Module[{k = a[n - 1], s = DigitCount[n - 1, 2, 1]}, k += s; While[! PrimeQ[k], k += s]; k]; Array[a, 50] (* Amiram Eldar, Jul 25 2023 *)

nonn,base

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seq(A194954(n), n=1..80) ; # ) ; # _R. J. Mathar, _, Sep 20 2011

Corrected by _R. J. Mathar, _, Sep 20 2011

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_Vladimir Shevelev (shevelev(AT)bgu.ac.il), _, Sep 06 2011

OEIS Server: https://oeis.org/edit/global/261

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