A378739 A378664(k) computed for those primitively abundant numbers k for which A378664(k) is less than the largest proper divisor of k.

6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 68, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 170, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 290, 646, 6, 6, 6, 6, 682, 6

Offset

1,1

Comments

Of the initial 20000 terms, 19803 are 6's.

Links

Antti Karttunen, Table of n, a(n) for n = 1..20000

Formula

a(n) = A378664(A378738(n)).

Crossrefs

Cf. A091191, A378664, A378738, A378740 (distinct terms in the order of appearance), A378741.

Sequence in context: A021019 A177057 A362115 * A082510 A343195 A173068

Adjacent sequences: A378736 A378737 A378738 * A378740 A378741 A378742

Keyword

nonn,new

Author

Antti Karttunen, Dec 07 2024

Status

approved