A218777 A014486-indices for the Beanstalk-tree growing one natural number at time, starting from the tree of one internal node (1), with the "lesser numbers to the left hand side" construction.

1, 3, 6, 15, 39, 117, 359, 1149, 3780, 12752, 43740, 152346, 536655, 1909411, 6852153, 24772328, 90137210, 329838392, 1213048022, 4481262944, 16621500330, 61875433940, 231099456721, 865736972546, 3252139562356, 12247622197965, 46232602224402, 174897265479074

Offset

1,2

Comments

See comments and examples at A218776.

Links

Antti Karttunen, Table of n, a(n) for n = 1..128

Formula

a(n) = A080300(A218776(n)).

Crossrefs

a(n) = A057163(A218779(n)). Cf. A218787, A218776, A218781, A218783.

Sequence in context: A327647 A086326 A098701 * A152799 A140824 A001433

Adjacent sequences: A218774 A218775 A218776 * A218778 A218779 A218780

Keyword

nonn

Author

Antti Karttunen, Nov 17 2012

Status

approved