A379232 Terms k of A104210 for which abs(A003961(k)-(2*k)) is prime, where A003961 is fully multiplicative with a(prime(i)) = prime(i+1), and A104210 gives numbers m for which gcd(m,A003961(m)) > 1.

6, 15, 35, 77, 646, 1334, 2294, 5681, 6293, 78793, 600677, 2255002, 2482402, 4564166, 8702275, 16798717, 17747807, 22197526, 236981285, 302764377, 1287983157, 2111098886, 2295003595

Offset

1,1

Comments

The definition entails that both abs(A379231(n)) and A151799(abs(A379231(n))) divide a(n).

If it exists, a(24) > 2^32.

Links

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

Index entries for sequences related to prime indices in the factorization of n.

Crossrefs

Cf. A003961, A104210, A151799, A252748, A379230, A379231.

Sequence in context: A038666 A075625 A006094 * A274320 A099620 A045969

Adjacent sequences: A379229 A379230 A379231 * A379233 A379234 A379235

Keyword

nonn,more

Author

Antti Karttunen, Dec 23 2024

Status

approved