1,4

Table of n, a(n) for n=1..80.

The bisection of even terms (the positive half of Z) is given by A053644 and the bisection of odd terms (the nonpositive half of Z) is given by A065280.

Sequence in context: A241737 A174959 A126093 * A151962 A072137 A061569

Adjacent sequences: A065276 A065277 A065278 * A065280 A065281 A065282

nonn

Antti Karttunen, Oct 28 2001

approved