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A104371 Euler's totient of A104350(n) + 1. 2
1, 2, 6, 12, 60, 180, 1152, 2520, 7560, 37332, 415800, 1247400, 16118932, 112918900, 564876900, 1109481408, 17645365584, 57890359152, 1099944846000, 5468570553600, 37559092302400, 421791599312500, 9256378099515120 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) = A000010(A104365(n));

a(p) = A104350(p) for primes p.

LINKS

Table of n, a(n) for n=1..23.

R. Zumkeller, Products of largest prime factors of numbers <= n

CROSSREFS

Cf. A104363.

Sequence in context: A002319 A195307 A101657 * A104350 A220027 A072489

Adjacent sequences:  A104368 A104369 A104370 * A104372 A104373 A104374

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Mar 06 2005

STATUS

approved

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Last modified October 17 16:34 EDT 2018. Contains 316285 sequences. (Running on oeis4.)