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A280306
a(n) = A049501(A003418(n)).
2
0, 0, 1, 2, 2, 4, 4, 13, 13, 16, 16, 28, 28, 46, 46, 46, 46, 77, 77, 48, 48, 48, 48, 117, 117, 141, 141, 134, 134, 213, 213, 326, 326, 326, 326, 326, 326, 352, 352, 352, 352, 389, 389, 413, 413, 413, 413, 508, 508
OFFSET
0,4
COMMENTS
This calculates the major index (1st definition) of the LCM of all the numbers from 1 to n.
EXAMPLE
For n=10, the LCM of all the numbers from 1 to 10 is 2520 = 100111011000_2, whose major index (1st definition) is 16, so a(10)=16.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Indranil Ghosh, Dec 31 2016
STATUS
approved