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A050823 Even numbers in Hofstadter Q-sequence a(n)=a(n-a(n-1))+a(n-a(n-2)). 1
2, 4, 6, 6, 6, 8, 8, 8, 10, 10, 12, 12, 12, 12, 16, 14, 14, 16, 16, 16, 16, 20, 20, 20, 22, 22, 24, 24, 24, 24, 24, 32, 24, 30, 28, 26, 30, 30, 28, 32, 30, 32, 32, 32, 32, 40, 38, 40, 38, 40, 40, 42, 40, 44, 46, 44, 46, 48, 48, 48, 48, 48, 48, 64, 52, 54, 56, 48, 54, 54, 50, 60 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..72.

CROSSREFS

Cf. A005185.

Sequence in context: A302754 A225369 A296511 * A209863 A207540 A050825

Adjacent sequences:  A050820 A050821 A050822 * A050824 A050825 A050826

KEYWORD

nonn,easy

AUTHOR

Mohammad K. Azarian

EXTENSIONS

More terms from James A. Sellers

STATUS

approved

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Last modified September 22 10:49 EDT 2021. Contains 347606 sequences. (Running on oeis4.)