login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A214267
Duplicate of A005437.
1
1, 1, 1, 2, 4, 14, 46, 224, 1024, 6320, 36976, 275792, 1965664, 17180144, 144361456, 1446351104, 13997185024, 158116017920, 1731678144256, 21771730437632, 266182076161024, 3686171162253824, 49763143319190016, 752594181757712384, 11118629668610842624
OFFSET
0,4
CROSSREFS
Sequence in context: A149852 A263740 A005437 * A266695 A327034 A263741
KEYWORD
dead
AUTHOR
Peter Luschny, Jul 09 2012
STATUS
approved