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A240471 Integer part of (n * A000005(n) / A000203(n)). 5
1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 3, 2, 2, 2, 3, 1, 3, 1, 3, 2, 2, 2, 3, 1, 2, 2, 3, 1, 3, 1, 3, 3, 2, 1, 3, 2, 3, 2, 3, 1, 3, 3, 3, 2, 2, 1, 4, 1, 2, 3, 3, 3, 3, 1, 3, 2, 3, 1, 4, 1, 2, 3, 3, 3, 3, 1, 4, 3, 2, 1, 4, 3, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
FORMULA
a(n) = (A038040(n) - A106315(n)) / A000203(n);
a(A046022(n)) = 1.
PROG
(Haskell) a240471 n = n * a000005 n `div` a000203 n
(PARI) a(n) = n*numdiv(n)\sigma(n); \\ Michel Marcus, Dec 02 2020
CROSSREFS
Cf. A000005, A000203, A038040, A046022, A106315.
Sequence in context: A084989 A128538 A115588 * A263569 A105220 A083654
Adjacent sequences: A240468 A240469 A240470 * A240472 A240473 A240474
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Apr 06 2014
STATUS
approved

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Last modified August 30 02:56 EDT 2024. Contains 375521 sequences. (Running on oeis4.)