A325493 a(n) = Sum_{k=1..n} A325910(k) * 10^(2^(k-1)).

0, 10, 1010, 11011010, 1111001011011010, 11111111000011011111001011011010, 1111111111111111000000001111001011111111000011011111001011011010

Offset: 0

Author

Seiichi Manyama, Sep 14 2019

Keywords

• nonn

Links

• Seiichi Manyama, Table of n, a(n) for n = 0..9

Crossrefs

Cf. A309597, A325910.

Programs

PARI

{a(n) = sum(i=1, n, 10^2^(i-1)*((-1)^(i-1)*sum(j=0, i-1, (-1)^j*10^2^j)-(1-(-1)^i)/2)/9)}