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A133928 Associate each least prime signature value with the corresponding prime number. 1
1, 2, 5, 11, 17, 31, 47, 83, 109, 127, 149, 211, 277, 307, 353, 499, 653, 709, 823, 1063, 1153, 1289, 1319, 1499, 1613, 1873, 2417, 2647, 2897, 3001, 3407, 3659, 4201, 5441, 5843, 6469, 6691, 6991, 7559, 8147, 8669, 9293, 10267, 10613, 12007, 12899, 14321 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..47.

FORMULA

a(n) = A000040[A025487(n-1)-1], n>1. - R. J. Mathar, Oct 09 2007

EXAMPLE

Let a(1) = 1 then note

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ... A000027

1 2 3 4 4 6 5 8 9 8 6 12 7 6 12 16 8 ... A064553

a(n) is formed by choosing the least prime signatures in row two which map to primes in row one yielding 1 2 5 11 17 ... since A024587 = 1 2 4 6 8 ...

CROSSREFS

Cf. A000040 A025487 A064553 A064555.

Sequence in context: A027429 A059987 A027426 * A126204 A091936 A153145

Adjacent sequences:  A133925 A133926 A133927 * A133929 A133930 A133931

KEYWORD

easy,nonn

AUTHOR

Alford Arnold, Sep 29 2007

EXTENSIONS

More terms from R. J. Mathar, Oct 09 2007

STATUS

approved

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Last modified June 2 11:35 EDT 2020. Contains 334771 sequences. (Running on oeis4.)