A110381 - OEIS

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

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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