A290397 Least number of nonprime squarefree numbers (A000469) that add up to n.
1, 2, 3, 4, 5, 1, 2, 3, 4, 1, 2, 2, 3, 1, 1, 2, 3, 3, 4, 2, 1, 1, 2, 2, 2, 1, 2, 2, 2, 1, 2, 2, 1, 1, 1, 2, 2, 1, 1, 2, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 1, 2, 2, 2, 1, 2, 1, 1, 2, 2, 2, 1, 2, 2, 1, 1, 2, 2, 1, 1, 2, 2, 2, 1, 2, 2, 1, 1, 2, 2, 2, 1, 2, 2, 1, 1, 1, 2
Offset: 1
Keywords
Examples
a(6) = 1 because 6 is already nonprime squarefree number. a(7) = 2 because 7 = 6 + 1 is a partition of 7 into 2 nonprime squarefree parts and there is no such partition with fewer terms.
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