A337269 A335703(4n).

1, 9, 95, 1195, 17251, 266331, 4216075, 67130923, 1072424939

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