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A249556 Odd numbers n such that 2n is a term in A247665. 1
1, 7, 61, 433, 883, 2003, 4241, 6121, 26293, 52903 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

It appears that this list only contains 1 and primes.

LINKS

Table of n, a(n) for n=1..10.

CROSSREFS

Cf. A247665.

Sequence in context: A064398 A275878 A129079 * A135165 A218805 A164943

Adjacent sequences:  A249553 A249554 A249555 * A249557 A249558 A249559

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Nov 01 2014

STATUS

approved

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Last modified September 20 18:26 EDT 2018. Contains 315240 sequences. (Running on oeis4.)