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A325493
a(n) = Sum_{k=1..n}
A325910
(k) * 10^(2^(k-1)).
4
0, 10, 1010, 11011010, 1111001011011010, 11111111000011011111001011011010, 1111111111111111000000001111001011111111000011011111001011011010
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OFFSET
0,2
LINKS
Seiichi Manyama,
Table of n, a(n) for n = 0..9
PROG
(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)}
CROSSREFS
Cf.
A309597
,
A325910
.
Sequence in context:
A080120
A300571
A274069
*
A006937
A037220
A179284
Adjacent sequences:
A325490
A325491
A325492
*
A325494
A325495
A325496
KEYWORD
nonn
AUTHOR
Seiichi Manyama
, Sep 14 2019
STATUS
approved
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Last modified April 23 15:20 EDT 2024. Contains 371916 sequences. (Running on oeis4.)