A337478 Primorial deflation of A336389.

1, 3, 20, 38, 159, 749, 1337

Offset: 0

Author

Antti Karttunen, Aug 29 2020

Keywords

• nonn
• hard
• more

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. A319626, A329900, A336389, A337474, A337476.

Cf. also A337477.

Formula

a(n) = A319626(A336389(n)) = A329900(A336389(n)).

For all n >= 0, A337474(a(n)) >= n and a(n) >= A337476(n).