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A088570 Sum of terms in n-th block of Kolakoski sequence. 0
1, 4, 2, 2, 1, 4, 1, 4, 2, 2, 2, 4, 1, 2, 2, 2, 1, 4, 2, 2, 2, 2, 1, 4, 1, 4, 2, 2, 1, 4, 1, 2, 2, 2, 2, 4, 1, 4, 2, 2, 1, 4, 1, 4, 2, 2, 2, 2, 1, 4, 1, 2, 2, 4, 1, 4, 2, 2, 1, 4, 1, 4, 2, 2, 2, 4, 1, 2, 2, 2, 1, 4, 1, 4, 2, 2, 2, 2, 1, 4, 2, 2, 2, 4, 1, 2, 2, 2, 2, 4, 1, 4, 2, 2, 1, 4, 1, 2, 2, 4, 1, 4, 1, 2, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..105.

FORMULA

a(n) = (3+(-1)^n)/2*A000002(n).

CROSSREFS

Cf. A000002.

Sequence in context: A205032 A264752 A325527 * A102888 A071558 A179621

Adjacent sequences:  A088567 A088568 A088569 * A088571 A088572 A088573

KEYWORD

nonn

AUTHOR

Benoit Cloitre, Nov 17 2003

STATUS

approved

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Last modified June 26 00:10 EDT 2019. Contains 324367 sequences. (Running on oeis4.)