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A324888 Minimal number of primorials (A002110) that add to A108951(n). 8
1, 1, 1, 2, 1, 2, 1, 2, 2, 2, 1, 4, 1, 2, 6, 4, 1, 4, 1, 4, 6, 2, 1, 4, 6, 2, 2, 4, 1, 6, 1, 2, 6, 2, 10, 8, 1, 2, 6, 2, 1, 2, 1, 4, 6, 2, 1, 4, 8, 12, 6, 4, 1, 4, 6, 8, 6, 2, 1, 6, 1, 2, 6, 4, 14, 12, 1, 4, 6, 10, 1, 6, 1, 2, 10, 4, 18, 12, 1, 4, 8, 2, 1, 4, 12, 2, 6, 8, 1, 12, 18, 4, 6, 2, 8, 8, 1, 16, 12, 8, 1, 12, 1, 8, 8 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

Sum of digits when A108951(n) is written in primorial base (A049345).

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..30030

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) = A276150(A108951(n)).

a(n) = A001222(A324886(n)).

PROG

(PARI)

A034386(n) = prod(i=1, primepi(n), prime(i));

A108951(n) = { my(f=factor(n)); prod(i=1, #f~, A034386(f[i, 1])^f[i, 2]) };  \\ From A108951

A276150(n) = { my(s=0, m); forprime(p=2, , if(!n, return(s)); m = n%p; s += m; n = (n-m)/p); };

A324888(n) = A276150(A108951(n));

CROSSREFS

Cf. A001222, A002110, A034386, A049345, A108951, A276086, A276150, A324886.

Cf. A324383, A324386, A324387  (permutations of this sequence).

Sequence in context: A323086 A295635 A115751 * A249145 A048684 A191613

Adjacent sequences:  A324885 A324886 A324887 * A324889 A324890 A324891

KEYWORD

nonn

AUTHOR

Antti Karttunen, Mar 30 2019

STATUS

approved

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Last modified November 14 22:32 EST 2019. Contains 329134 sequences. (Running on oeis4.)