1,5
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Cf. A052446, ..., A052448.
Sequence in context: A052861 A161937 A074621 this_sequence A127610 A085228 A055866
Adjacent sequences: A052445 A052446 A052447 this_sequence A052449 A052450 A052451
nonn,more
Eric Weisstein (eric(AT)weisstein.com)
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