1,2

a(n) = ((2n)^(2n-1)+1)/(2n+1). a(n) = A083062(2n-1).

Cf. A083062 = (n+1)^n/(n+2)-(-1)^n/(n+2).

Sequence in context: A095680 A128685 A076481 this_sequence A091781 A064962 A066457

Adjacent sequences: A128894 A128895 A128896 this_sequence A128898 A128899 A128900

nonn

Alexander Adamchuk (alex(AT)kolmogorov.com), Apr 20 2007