1,1
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Cf. A033308, A030168.
Sequence in context: A140270 A092456 A029522 this_sequence A114435 A112679 A096912
Adjacent sequences: A033306 A033307 A033308 this_sequence A033310 A033311 A033312
nonn,cofr,more
Eric Weisstein (eric(AT)weisstein.com)
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