A110381 a(n) = corresponding product of parts in A110380.

1, 11, 11, 111, 1221, 1221, 12221, 123321, 1356531, 1356531, 13566531, 135787531, 1370219631, 15072415941, 15072415941, 150725515941, 1507390825941, 15087488356941, 152246473420041, 1674711207620451, 1674711207620451

Offset

1,2

Links

Table of n, a(n) for n=1..21.

Example

Using n ones and only the * sign we get the following sums.
1 a(1) = 1
11 a(2) =11
1*11 a(3) = 11
1 *111 a(4) =111
11*111 a(5) = 1221
1*11*111 a(6) =1221
1*11*1111 a(7) =12221
1*111*1111
11*111*1111

Crossrefs

Cf. A110380.

Sequence in context: A277953 A279985 A279473 * A165832 A038325 A268922

Adjacent sequences: A110378 A110379 A110380 * A110382 A110383 A110384

Keyword

base,easy,nonn

Author

Amarnath Murthy, Jul 25 2005

Extensions

More terms from Joshua Zucker, May 08 2006

Status

approved