A393061 a(n) = LCM_{d|n} A276086(d), where LCM is the least common multiple, and A276086 is the primorial base exp-function.

2, 6, 6, 18, 18, 30, 10, 90, 30, 90, 90, 450, 50, 150, 450, 450, 450, 750, 250, 2250, 750, 2250, 2250, 11250, 11250, 3750, 3750, 11250, 11250, 3150, 14, 3150, 630, 3150, 630, 15750, 70, 5250, 1050, 15750, 630, 5250, 350, 15750, 3150, 15750, 3150, 78750, 1750, 78750, 15750, 78750, 15750, 26250, 78750, 78750, 26250

Offset

1,1

Links

Antti Karttunen, Table of n, a(n) for n = 1..11550

Index entries for sequences related to lcm's.

Index entries for sequences related to primorial base.

Formula

a(n) = A276086(A393062(n)).

Prog

(PARI)
A276086(n) = { my(m=1, p=2); while(n, m *= (p^(n%p)); n = n\p; p = nextprime(1+p)); (m); };
A393061(n) = { my(m=1); fordiv(n, d, m = lcm(m, A276086(d))); (m); };

Crossrefs

Cf. A276086, A393062.

Subsequence of A048103.

Sequence in context: A019076 A197109 A111410 * A240087 A083774 A081518

Adjacent sequences: A393058 A393059 A393060 * A393062 A393063 A393064

Keyword

nonn,base,easy

Author

Antti Karttunen, Feb 04 2026

Status

approved