A218779 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 right hand side" construction.

1, 2, 6, 16, 53, 156, 491, 1584, 5286, 17855, 61405, 214012, 754731, 2688307, 9659023, 34947356, 127260566, 465920651, 1714294995, 6335423798, 23506865260, 87534068725, 327024845325, 1225395355165, 4604242172697, 17343284212635, 65480496260109, 247755060623522

Offset

1,2

Comments

See comments and examples at A218778.

Links

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

Formula

a(n) = A080300(A218778(n)).

a(n) = A057163(A218777(n)).

Crossrefs

Cf. A218778, A218781, A218783.

Sequence in context: A263595 A263596 A263591 * A241066 A045696 A150028

Adjacent sequences: A218776 A218777 A218778 * A218780 A218781 A218782

Keyword

nonn

Author

Antti Karttunen, Nov 17 2012

Status

approved