1,3

Self-descriptive sequence: even terms are the sequence itself, odd terms are the digits of the decimal expansion of sqrt 2.

Table of n, a(n) for n=1..62.

C. Kimberling, Fractal sequences.

a(2n)=a(n); a(2n+1)=digits of sqrt 2.

Cf. A003602.

Sequence in context: A326039 A183374 A176263 * A151904 A222360 A222371

Adjacent sequences: A110809 A110810 A110811 * A110813 A110814 A110815

easy,nonn,base

Alexandre Wajnberg, Sep 15 2005

approved