A337477 Position of the first term >= n in A337475.

1, 4, 17, 570, 63826, 13810338

Offset: 0

Author

Antti Karttunen, Aug 28 2020

Keywords

• nonn
• hard
• more

Comments

At least for n=0..5, A336835(A025487(a(n))) = n.

Links

• Index entries for sequences computed from indices in prime factorization
• Index entries for sequences related to primorial numbers
• Index entries for sequences related to sigma(n)

Crossrefs

Cf. A025487, A336389, A336835, A337475, A337476, A337478.

Formula

For all n >= 0, A025487(a(n)) = A336389(n).