0,3

In table A122888, row n lists the coefficients of x^k, k=1..2^n, in the n-th self-composition of (x + x^2) for n>=0.

Paul D. Hanna, Table of n, a(n), n=0..100.

Cf. A122888.

Sequence in context: A057649 A104872 A006082 this_sequence A158874 A014280 A073431

Adjacent sequences: A122886 A122887 A122888 this_sequence A122890 A122891 A122892

nonn

Paul D. Hanna (pauldhanna(AT)juno.com), Sep 18 2006