1,5
Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.
Cf. A052441, ..., A052445.
Sequence in context: A127746 A069100 A031991 this_sequence A046888 A046890 A046811
Adjacent sequences: A052441 A052442 A052443 this_sequence A052445 A052446 A052447
nonn,more
Eric Weisstein (eric(AT)weisstein.com)
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