A374138 -id:A374138 - cp's OEIS frontend

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

Offset: 1

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Antti Karttunen, Jul 06 2024

nonn

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.

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

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

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

PARI
```
isA374129 = A374128;
```

cp's OEIS Frontend

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).

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