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A082693 Pyramidal sequence built with powers of 2. 2
1, 2, 1, 2, 4, 2, 1, 2, 4, 8, 4, 2, 1, 2, 4, 8, 16, 8, 4, 2, 1, 2, 4, 8, 16, 32, 16, 8, 4, 2, 1, 2, 4, 8, 16, 32, 64, 32, 16, 8, 4, 2, 1, 2, 4, 8, 16, 32, 64, 128, 64, 32, 16, 8, 4, 2, 1, 2, 4, 8, 16, 32, 64, 128, 256, 128, 64, 32, 16, 8, 4, 2, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 256, 128 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

CROSSREFS

Cf. A004738, A082693 (partial sums).

Sequence in context: A186187 A013943 A164281 * A097082 A145173 A082793

Adjacent sequences:  A082690 A082691 A082692 * A082694 A082695 A082696

KEYWORD

nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 12 2003

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Last modified February 16 19:23 EST 2012. Contains 205945 sequences.