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Search: id:A050194
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A050194 a(n)=a(n-1)+a(n-2)-d, where d=a(n/4) if 4 divides n, else d=0; 2 initial terms. +0
1
1, 1, 2, 2, 4, 6, 10, 15, 25, 40, 65, 103, 168, 271, 439, 708, 1147, 1855, 3002, 4853, 7855, 12708, 20563, 33265, 53828, 87093, 140921, 228004, 368925, 596929, 965854, 1562768, 2528622, 4091390, 6620012, 10711377, 17331389 (list; graph; listen)
OFFSET

1,3
CROSSREFS

Sequence in context: A083848 A139582 A034410 this_sequence A006355 A055389 A163733

Adjacent sequences: A050191 A050192 A050193 this_sequence A050195 A050196 A050197

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.

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