Now is the time of year when we ask all users of the OEIS for their annual support.
Click here to donate
to the OEIS Foundation using PayPal or in other ways.
This is the square root of the inverse of the plastic number A060006: 1.32471795724...
This is the positive root of x^6 + x^4 - 1 = 0 and the square root of A075778.
Table of n, a(n) for n=0..85.
Wikipedia, Plastic number
Cf. A000931, A060006.
Sequence in context: A159627 A011298 A188655 * A088541 A110214 A093721
Adjacent sequences: A191906 A191907 A191908 * A191910 A191911 A191912
Fabrice Auzanneau, Jun 19 2011