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Search: id:A163448
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A163448 a(n) = 20*a(n-1)-98*a(n-2) for n > 1; a(0) = 1, a(1) = 12. +0
2
1, 12, 142, 1664, 19364, 224208, 2586488, 29757376, 341671696, 3917211072, 44860395232, 513321219584, 5870105658944, 67096633659648, 766662318616448, 8757776273683456, 100022618249257216, 1142190290164165632 (list; graph; listen)
OFFSET

0,2

COMMENT

Binomial transform of A163447. Tenth binomial transform of A163403.

FORMULA

a(n) = ((1+sqrt(2))*(10+sqrt(2))^n+(1-sqrt(2))*(10-sqrt(2))^n)/2.

G.f.: (1-8*x)/(1-20*x+98*x^2).

PROGRAM

(MAGMA) [ n le 2 select 11*n-10 else 20*Self(n-1)-98*Self(n-2): n in [1..18] ];

CROSSREFS

Cf. A163447, A163403.

Sequence in context: A056340 A056330 A158516 this_sequence A004191 A051051 A001021

Adjacent sequences: A163445 A163446 A163447 this_sequence A163449 A163450 A163451

KEYWORD

nonn

AUTHOR

Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Jul 27 2009

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.


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