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A050687
Numbers k such that A000422(k) is squarefree.
2
1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 13, 14, 16, 19, 20, 21, 22, 23, 24, 25, 28, 29, 30, 31, 32, 33, 34, 37, 38, 39, 40, 41, 42, 43, 46, 47, 48, 49, 50, 51, 52, 55, 57, 58, 59, 60, 61, 64, 65, 66, 67, 68, 69, 70, 73, 74, 75, 76, 77, 78, 79, 82, 83, 84, 85, 86, 87
OFFSET
1,2
CROSSREFS
KEYWORD
nonn,base,hard
AUTHOR
Patrick De Geest, Aug 15 1999
EXTENSIONS
More terms from and name clarified by Sean A. Irvine, Aug 17 2021
Offset changed to 1 by Jinyuan Wang, Sep 04 2021
STATUS
approved