A178390 a(n) = (n^2+1)^2+1.

2, 5, 26, 101, 290, 677, 1370, 2501, 4226, 6725, 10202, 14885, 21026, 28901, 38810, 51077, 66050, 84101, 105626, 131045, 160802, 195365, 235226, 280901, 332930, 391877, 458330, 532901, 616226, 708965, 811802, 925445, 1050626, 1188101

Offset

0,1

Links

Table of n, a(n) for n=0..33.

Mathematica

Table[(n^2 + 1)^2 + 1, {n, 0, 5!}]

Crossrefs

Cf. A002522.

Sequence in context: A160048 A019047 A221679 * A045903 A090878 A214951

Adjacent sequences: A178387 A178388 A178389 * A178391 A178392 A178393

Keyword

nonn,easy

Author

Vladimir Joseph Stephan Orlovsky, May 27 2010

Extensions

Offset changed to 0 by Georg Fischer, Mar 12 2020

Status

approved