A280306 a(n) = A049501(A003418(n)).

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

Author

Indranil Ghosh, Dec 31 2016

Keywords

• nonn
• base

Comments

This calculates the major index (1st definition) of the LCM of all the numbers from 1 to n.

Examples

			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.
		

Links

• Indranil Ghosh, Table of n, a(n) for n = 0..10000
• Indranil Ghosh, Python Program to generate the sequence

Crossrefs

Cf. A049501, A003418, A279519.