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A324057 a(n) = A106315(A005940(1+n)). 9
0, 1, 2, 5, 4, 0, 1, 2, 6, 4, 12, 16, 13, 30, 28, 18, 10, 8, 20, 36, 44, 24, 36, 12, 33, 21, 78, 51, 32, 72, 42, 3, 12, 16, 36, 0, 4, 48, 66, 50, 20, 128, 72, 48, 58, 144, 120, 108, 97, 75, 198, 32, 102, 312, 10, 84, 172, 128, 504, 176, 1, 168, 2, 67, 16, 20, 44, 12, 8, 96, 126, 88, 28, 16, 168, 112, 162, 264, 232, 56, 68, 80, 312, 0, 200, 480, 36, 120 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,3

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..8191

Antti Karttunen, Data supplement: n, a(n) computed for n = 0..70327

FORMULA

a(n) = A106315(A005940(1+n)).

a(n) = A005940(1+n)*A106737(n) mod A324054(n).

PROG

(PARI)

A005940(n) = { my(p=2, t=1); n--; until(!n\=2, if((n%2), (t*=p), p=nextprime(p+1))); t }; \\ From A005940

A106315(n) = (n*numdiv(n) % sigma(n));

A324057(n) = A106315(A005940(1+n));

CROSSREFS

Cf. A005940, A106737, A106315, A324054, A324055, A324058.

Sequence in context: A307126 A191474 A199602 * A106315 A285295 A217563

Adjacent sequences:  A324054 A324055 A324056 * A324058 A324059 A324060

KEYWORD

nonn

AUTHOR

Antti Karttunen, Feb 14 2019

STATUS

approved

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Last modified September 26 01:55 EDT 2021. Contains 347664 sequences. (Running on oeis4.)