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A015475 q-Fibonacci numbers for q=4. 0
0, 1, 4, 65, 4164, 1066049, 1091638340, 4471351706689, 73258627454030916, 4801077413298721817665, 1258573637505038759624004676, 1319710110525284599824799048959041 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

FORMULA

a(n) = 4^(n-1) a(n-1) + a(n-2).

CROSSREFS

Sequence in context: A171959 A041119 A206500 * A197947 A025585 A198893

Adjacent sequences:  A015472 A015473 A015474 * A015476 A015477 A015478

KEYWORD

nonn,easy

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com)

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Last modified February 15 13:20 EST 2012. Contains 205797 sequences.