cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A322375 a(n) = A318366(A025487(n)).

Original entry on oeis.org

0, 0, 1, 2, 4, 8, 10, 20, 12, 20, 24, 40, 34, 35, 52, 70, 72, 56, 95, 84, 112, 48, 104, 130, 84, 156, 164, 168, 116, 180, 212, 120, 238, 280, 240, 224, 284, 189, 322, 165, 304, 344, 258, 300, 438, 330, 380, 420, 348, 464, 220, 500, 477, 160, 472, 460, 644, 440, 592
Offset: 1

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Author

David A. Corneth, Jan 12 2019

Keywords

Comments

A318366(n) computes a sum over the divisors of n in such a way that A318366(n) only depends on the prime signature of n. A025487 lists least numbers with a given prime signature with the exponents in nonincreasing order. This sequence hence shows this sum over divisors for distinct prime signatures.

Examples

			a(8) = A318366(A025487(8)) = A318366(24) = 20 (See example of finding A318366 at that sequence).
		

Crossrefs