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A278058 Relative of Hofstadter Q-sequence: a(n) = n for 1 <= n <= 6; a(n) = a(n-a(n-1)) + a(n-a(n-2)) for n > 6. 11
1, 2, 3, 4, 5, 6, 3, 7, 8, 5, 9, 6, 7, 10, 12, 10, 8, 12, 12, 14, 11, 16, 9, 19, 16, 8, 21, 17, 13, 15, 22, 13, 23, 20, 18, 22, 24, 20, 24, 24, 16, 20, 30, 29, 22, 27, 30, 23, 20, 36, 34, 22, 34, 27, 28, 30, 34, 36, 25, 37, 41, 27, 38, 32, 44, 36, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Similar to Hofstadter's Q-sequence A005185 but with different starting values.

Much like the Hofstadter Q-sequence, it is not known if this sequence is defined for all positive n.

a(n) exists for n <= 3*10^7.

LINKS

Nathan Fox, Table of n, a(n) for n = 1..10000

N. Fox, Hofstadter-like Sequences over Nonstandard Integers, Talk given at the Rutgers Experimental Mathematics Seminar, November 10 2016.

CROSSREFS

Cf. A005185, A278056, A278057, A278059, A278060, A278061, A278062, A278063, A278064, A278065.

Sequence in context: A328764 A323081 A274630 * A320115 A319994 A319714

Adjacent sequences:  A278055 A278056 A278057 * A278059 A278060 A278061

KEYWORD

nonn

AUTHOR

Nathan Fox, Nov 10 2016

STATUS

approved

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Last modified May 5 17:26 EDT 2021. Contains 343572 sequences. (Running on oeis4.)