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A057334 In A000120, replace each entry k with the k-th prime and replace 0 with 1. 2
1, 2, 2, 3, 2, 3, 3, 5, 2, 3, 3, 5, 3, 5, 5, 7, 2, 3, 3, 5, 3, 5, 5, 7, 3, 5, 5, 7, 5, 7, 7, 11, 2, 3, 3, 5, 3, 5, 5, 7, 3, 5, 5, 7, 5, 7, 7, 11, 3, 5, 5, 7, 5, 7, 7, 11, 5, 7, 7, 11, 7, 11, 11, 13, 2, 3, 3, 5, 3, 5, 5, 7, 3, 5, 5, 7, 5, 7, 7, 11, 3, 5, 5, 7 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..83.

Michael Gilleland, Some Self-Similar Integer Sequences

FORMULA

a(n) = A000040(A000120(n)) for n>0.

PROG

(PARI) a(n) = if (n==0, 1, prime(hammingweight(n))); \\ Michel Marcus, Feb 08 2014

CROSSREFS

Cf. A000040, A000120, A055932, A057335.

Sequence in context: A239500 A029204 A241085 * A048475 A204597 A285734

Adjacent sequences:  A057331 A057332 A057333 * A057335 A057336 A057337

KEYWORD

easy,nonn

AUTHOR

Alford Arnold, Aug 27 2000

EXTENSIONS

More terms from Michel Marcus, Feb 08 2014

STATUS

approved

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Last modified April 16 07:59 EDT 2021. Contains 343030 sequences. (Running on oeis4.)