A022871 - OEIS

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A022871

a(n) = [ a(n-1)/a(1) + a(n-3)/a(3) + a(n-5)/a(5) + ... ], for n >= 3.

1

2, 2, 1, 2, 3, 3, 4, 5, 6, 8, 10, 13, 17, 22, 28, 36, 47, 61, 79, 102, 132, 172, 223, 288, 374, 485, 629, 816, 1058, 1372, 1780, 2308, 2993, 3883, 5036, 6531, 8471, 10987, 14250, 18483, 23972, 31092, 40327, 52305, 67840, 87990, 114125, 148021

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Table of n, a(n) for n=1..48.

CROSSREFS

Sequence in context: A053284 A050371 A172313 * A127218 A293520 A292602

Adjacent sequences: A022868 A022869 A022870 * A022872 A022873 A022874

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved