A110812 Fractalization of sqrt 2.

1, 1, 4, 1, 1, 4, 4, 1, 2, 1, 1, 4, 3, 4, 5, 1, 6, 2, 2, 1, 3, 1, 7, 4, 3, 3, 0, 4, 9, 5, 5, 1, 0, 6, 4, 2, 8, 2, 8, 1, 0, 3, 1, 1, 6, 7, 8, 4, 8, 3, 7, 3, 2, 0, 4, 4, 2, 9, 0, 5, 9, 5

Offset: 1

Author

Alexandre Wajnberg, Sep 15 2005

Keywords

• easy
• nonn
• base

Comments

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

Links

• Clark Kimberling, Fractal sequences.

Crossrefs

Cf. A002193 (sqrt 2), A003602.

Cf. A110766 (of Pi), A110779 (of e), A382130 (of phi).

Formula

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