A373476 - OEIS

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A373476

Numbers k such that k, A001414(k) and A083345(k) are all multiples of 3, where A001414 is fully additive with a(p) = p, and A083345 is the numerator of the fully additive function with a(p) = 1/p.

19683, 157464, 275562, 393660, 511758, 688905, 747954, 866052, 984150, 1220346, 1259712, 1279395, 1338444, 1456542, 1515591, 1692738, 1810836, 1869885, 2165130, 2204496, 2283228, 2342277, 2401326, 2460375, 2637522, 2814669, 2873718, 3050865, 3109914, 3149280, 3168963, 3228012, 3346110, 3641355, 3700404, 3818502

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OFFSET

1,1

COMMENTS

Numbers k such that A373474(k) = 1+A369658(k).

All terms are multiples of 19683 [= 3^9].

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..23455; terms less than 2^21

FORMULA

a(n) = 3^9 * A373475(n).

PROG

(PARI)