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A029570 Quasi-Carmichael numbers to base -10: squarefree composites n such that prime p|n ==> p+10|n+10. 3
935, 65195, 861851, 1486895, 3061265, 4497686, 5164226, 5322419, 6153830, 8547998, 9125855, 22050809, 22734611, 25345310, 32812406, 40860755, 45631898, 50315135, 51436130, 61532153, 74613347, 81080990, 86724215, 94903370 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..293 (terms < 10^12)

Index entries for sequences related to Carmichael numbers.

MATHEMATICA

qcp[n_, d_] := Block[{p, e}, {p, e} = Transpose@FactorInteger@n;

Length[p] > 1 && Max[e] == 1 && And @@ IntegerQ /@ ((n + d)/(p + d))]; Select[Range[10^6], qcp[#, 10] &] (* Giovanni Resta, May 21 2013 *)

CROSSREFS

Sequence in context: A171348 A232380 A292571 * A278186 A120810 A027554

Adjacent sequences:  A029567 A029568 A029569 * A029571 A029572 A029573

KEYWORD

nonn

AUTHOR

David W. Wilson

STATUS

approved

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Last modified February 27 11:38 EST 2021. Contains 341656 sequences. (Running on oeis4.)