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A157217 Mix A091411 and its differences. 0
1, 2, 3, 6, 9, 10, 19, 28, 47, 51, 98, 122, 220, 221, 441, 444, 885, 886, 1771, 1780, 3551, 3555, 7106, 7173, 14279, 14280, 28559, 28562, 57121, 57122, 114243, 114252, 228495, 228499, 456994, 457018, 914012, 914013, 1828025, 1828028, 3656053, 3656054, 7312107, 7312116 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

First differences: 1, 1, 3, 3, 1, 9, 9, 19, 4, 47, ....

LINKS

Table of n, a(n) for n=0..43.

FORMULA

a(2n) = A091441(n+1). a(2n-1) = A091441(n+1)-A091441(n).

CROSSREFS

Sequence in context: A191178 A191127 A015898 * A058958 A215618 A189708

Adjacent sequences:  A157214 A157215 A157216 * A157218 A157219 A157220

KEYWORD

nonn,less

AUTHOR

Paul Curtz, Feb 25 2009

STATUS

approved

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Last modified October 20 03:04 EDT 2021. Contains 348099 sequences. (Running on oeis4.)