A182858 Irregular table: Row n is the list of positive exponents in the canonical prime factorization of A182857(n), sorted in descending order, or 0 if there are no such exponents.

0, 1, 2, 1, 1, 2, 1, 2, 1, 1, 3, 2, 1, 1, 4, 3, 2, 2, 1, 1, 1, 7, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 14, 13, 12, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 42, 41, 40, 39, 38, 37, 36, 35, 35, 34, 34, 33, 33, 32, 32, 31, 31

Offset

0,3

Comments

Length of row 0 = length of row 1 = 1; for n > 1, length of row n = A011784(n-1).

For n > 2, row n = row (n-2) of A012257, reversed.

Links

Table of n, a(n) for n=0..93.

Example

Table begins:
0,
1,
2,
1,1,
2,1,
2,1,1,
3,2,1,1,...

Crossrefs

Cf. A181819, A182850.

Sequence in context: A115623 A279044 A134265 * A175077 A001030 A246140

Adjacent sequences: A182855 A182856 A182857 * A182859 A182860 A182861

Keyword

nonn,tabf

Author

Matthew Vandermast, Jan 05 2011

Status

approved