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A159614 Emirps with multiplicative persistence value 1. 0
13, 17, 31, 71, 107, 113, 311, 701, 709, 907, 1009, 1021, 1031, 1033, 1061, 1069, 1091, 1097, 1103, 1109, 1151, 1181, 1201, 1213, 1231, 1301, 1321, 1409, 1511, 1601, 1811, 1901, 3011, 3019, 3023, 3049, 3067, 3083, 3089, 3109, 3121, 3203, 3301, 3407, 3803 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Intersection of A006567 and A046501.

LINKS

Table of n, a(n) for n=1..45.

MAPLE

read("transforms3") ; A031346 := proc(n) local nm, a, d ; nm := n ; a := 0 ; while nm > 10 do nm := mul(d, d=convert(nm, base, 10)) ; a := a+1: od: a ; end: L := BFILETOLIST("b006567.txt") : for i from 1 to 300 do if A031346(op(i, L)) = 1 then printf("%d, ", op(i, L)) ; fi; od: # R. J. Mathar, Apr 29 2009

CROSSREFS

Cf. A006567, A046501.

Sequence in context: A158571 A176882 A272403 * A158087 A210546 A126808

Adjacent sequences:  A159611 A159612 A159613 * A159615 A159616 A159617

KEYWORD

nonn,base

AUTHOR

Lekraj Beedassy, Apr 17 2009

EXTENSIONS

More terms from R. J. Mathar, Apr 29 2009

STATUS

approved

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Last modified August 6 19:52 EDT 2020. Contains 336256 sequences. (Running on oeis4.)