A050682 Positions of 5's in A048288.

9, 20, 22, 24, 28, 33, 40, 46, 56, 61, 72, 87

Offset

1,1

Links

Table of n, a(n) for n=1..12.

Patrick De Geest, Reversed Smarandache Concatenated Numbers, Prime factors from n down to 1

M. Fleuren, Factors and primes of Smarandache sequences.

M. Fleuren, Smarandache Factors and Reverse factors

Carlos Rivera, Puzzle 8. Primes by Listing, The Prime Puzzles and Problems Connection.

Crossrefs

Cf. A000422, A046464, A048288, A050679, A050680, A050681.

Sequence in context: A236205 A356317 A356319 * A094196 A253089 A256383

Adjacent sequences: A050679 A050680 A050681 * A050683 A050684 A050685

Keyword

nonn,base,hard,less,more

Author

Patrick De Geest, Aug 15 1999

Extensions

a(11)-a(12) from Sean A. Irvine, Aug 17 2021

Offset changed to 1 by Jinyuan Wang, Sep 04 2021

Status

approved