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A088570 Sum of terms in n-th bloc of Kolakoski sequence. +0
1
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; listen)
OFFSET

1,2

FORMULA

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

CROSSREFS

Sequence in context: A004551 A016511 A123402 this_sequence A102888 A071558 A136709

Adjacent sequences: A088567 A088568 A088569 this_sequence A088571 A088572 A088573

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Nov 17 2003

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.


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