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A317091
Positive integers whose prime multiplicities are weakly increasing and span an initial interval of positive integers.
4
2, 3, 5, 6, 7, 10, 11, 13, 14, 15, 17, 18, 19, 21, 22, 23, 26, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 46, 47, 50, 51, 53, 55, 57, 58, 59, 61, 62, 65, 66, 67, 69, 70, 71, 73, 74, 75, 77, 78, 79, 82, 83, 85, 86, 87, 89, 91, 93, 94, 95, 97, 98, 101, 102
OFFSET
1,1
LINKS
MATHEMATICA
normalQ[m_]:=Union[m]==Range[Max[m]];
Select[Range[2, 150], And[normalQ[FactorInteger[#][[All, 2]]], OrderedQ[FactorInteger[#][[All, 2]]]]&]
KEYWORD
nonn
AUTHOR
Gus Wiseman, Jul 21 2018
STATUS
approved