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A152621
a(n)=8*a(n-1)-6*a(n-2), n>1 ; a(0)=1, a(1)=2.
1
1, 2, 10, 68, 484, 3464, 24808, 177680, 1272592, 9114656, 65281696, 467565632, 3348834880, 23985285248, 171789272704, 1230402470144, 8812484124928, 63117458178560, 452064760678912, 3237813336359936, 23190118126806016
OFFSET
0,2
COMMENTS
Unsigned version of A152620.
FORMULA
G.f.: (1-6*x)/(1-8*x+6*x^2).
MATHEMATICA
LinearRecurrence[{8, -6}, {1, 2}, 30] (* Harvey P. Dale, Jun 19 2022 *)
CROSSREFS
Sequence in context: A049036 A208561 A152620 * A147725 A074603 A110520
KEYWORD
nonn,easy
AUTHOR
Philippe Deléham, Dec 10 2008
STATUS
approved