A346107 a(n) = A108951(A346097(n)), where A346097(n) gives the denominator of the primorial deflation of A276086(A108951(n)).

1, 2, 6, 4, 30, 36, 210, 2, 6, 900, 2310, 1296, 30030, 44100, 729000000, 4, 510510, 36, 9699690, 810000, 85766121000000, 5336100, 223092870, 216, 39690000, 901800900, 1260, 1944810000, 6469693230, 24300000, 200560490130, 60, 151939915084881000000, 260620460100, 3782285936100000000, 1296, 7420738134810, 94083986096100

Offset

1,2

Links

Table of n, a(n) for n=1..38.

Index entries for sequences computed from indices in prime factorization

Index entries for sequences related to primorial base

Index entries for sequences related to primorial numbers

Formula

a(n) = A108951(A346097(n)) = A108951(A319627(A324886(n))).

a(n) = A346106(n) / A324886(n).

Prog

(PARI)
A064989(n) = {my(f); f = factor(n); if((n>1 && f[1, 1]==2), f[1, 2] = 0); for (i=1, #f~, f[i, 1] = precprime(f[i, 1]-1)); factorback(f)};
A319627(n) = (A064989(n) / gcd(n, A064989(n)));
A346097(n) = A319627(A324886(n));
A346107(n) = A108951(A346097(n)); \\ Rest of program given in A324886.

Crossrefs

Cf. A064989, A108951, A276086, A319627, A324886, A346097, A346106, A346109.

Sequence in context: A002790 A108951 A181822 * A174940 A293011 A108435

Adjacent sequences: A346104 A346105 A346106 * A346108 A346109 A346110

Keyword

nonn

Author

Antti Karttunen, Jul 08 2021

Status

approved