A374129 - OEIS

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A374129

Numbers k for which gcd(A075255(k), A374127(k)) = abs(A374127(k)); numbers k such that A075255(k) is a multiple of A374127(k).

2, 3, 4, 5, 6, 7, 8, 10, 11, 13, 14, 15, 17, 19, 21, 22, 23, 26, 28, 29, 31, 33, 34, 35, 37, 38, 39, 41, 43, 46, 47, 51, 53, 55, 57, 58, 59, 61, 62, 65, 67, 69, 71, 73, 74, 77, 79, 82, 83, 85, 86, 87, 89, 91, 93, 94, 95, 97, 101, 103, 106, 107, 109, 111, 113, 115, 118, 119, 122, 123, 127, 129, 131, 133, 134, 137

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Agrees on many terms with A084116, but this includes 4, which A084116 doesn't have, and this has 28 instead of 27, doesn't have 125 nor 343, has 496 (which A084116 doesn't have), etc.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..20000

PROG

(PARI) isA374129 = A374128;

CROSSREFS

Cf. A000203, A001414, A075254, A084116, A086665, A374127, A374128 (characteristic function).

Subsequences: A000396, A374138 (terms with bigomega(n) > 2).

Sequence in context: A181709 A320058 A320057 * A365406 A342081 A033106

Adjacent sequences: A374126 A374127 A374128 * A374130 A374131 A374132

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jul 06 2024

STATUS

approved