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A154828
Row sums of a q-Catalan triangle for q=2.
1
1, 2, 8, 52, 548, 9852, 323988, 20589852, 2599737428, 658007495452, 334291709264468, 340646270830877852, 695599447171017236308, 2844303802537519899994652, 23277772627131826189210443348
OFFSET
0,2
COMMENTS
Row sums of A154829. Might be considered as q-Schroeder numbers for q=2.
FORMULA
G.f.: 1/(1-2x/(1-2x/(1-5x/(1-8x/(1-17x/(1-32x/(1-65x/(1-.... (continued fraction).
CROSSREFS
Sequence in context: A305004 A151879 A191552 * A349012 A057629 A191507
KEYWORD
easy,nonn
AUTHOR
Paul Barry, Jan 15 2009
STATUS
approved