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A124140
Numbers k such that there is a bigger number m satisfying A000203(k) = A000203(m) = m + k - gcd(m,k).
1
24, 78, 90, 224, 260, 264, 348, 570, 728, 846, 996, 1580, 1692, 2030, 2514, 3552, 3762, 4560, 4648, 4668, 5250, 5976, 6448, 6650, 6954, 8634, 10458, 11994, 13624, 14056, 14476, 16056, 17064, 17292, 17412, 18960, 21712, 22652, 23500, 24108, 26940, 27132, 27412
OFFSET
1,1
COMMENTS
R. Mathar computed this sequence up to 15000.
EXAMPLE
24 is in the sequence because A000203(24) = A000203(38) = 60 = 24 + 38 - gcd(24,38).
CROSSREFS
Sequence in context: A144459 A290710 A206010 * A206003 A143839 A114818
KEYWORD
nonn
AUTHOR
Yasutoshi Kohmoto, Dec 01 2006
EXTENSIONS
Edited by Stefan Steinerberger, Aug 14 2007
Terms corrected by and more terms from Jinyuan Wang, Feb 07 2022
STATUS
approved