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A337269 A335703(4n). 3
1, 9, 95, 1195, 17251, 266331, 4216075, 67130923, 1072424939 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

In theory this should be easier to analyze than A335703, since the construction follows a cycle of four steps.

LINKS

Table of n, a(n) for n=0..8.

CROSSREFS

Cf. A328078, A335703, A337267, A337268.

Sequence in context: A193216 A213019 A098450 * A065456 A052389 A197665

Adjacent sequences:  A337266 A337267 A337268 * A337270 A337271 A337272

KEYWORD

nonn,more

AUTHOR

Rémy Sigrist and N. J. A. Sloane, Aug 26 2020

STATUS

approved

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Last modified September 27 21:12 EDT 2021. Contains 347698 sequences. (Running on oeis4.)