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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
OFFSET
1,2
COMMENTS
It appears that this list only contains 1 and primes.
CROSSREFS
Cf. A247665.
Sequence in context: A064398 A275878 A129079 * A135165 A218805 A164943
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Nov 01 2014
STATUS
approved