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Search: id:A083417
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A083417 Primitive recursive function r(z, r(s, r(s, r(s, p_2)))) at (n, 0). +0
1
0, 1, 2, 1, 0, 5, 2, 3, 3, 2, 2, 3, 4, 1, 8, 5, 4, 2, 2, 3, 3, 2, 2, 7, 2, 9, 5, 2, 12, 9, 7, 5, 4, 2, 2, 3, 4, 1, 8, 5, 4, 2, 2, 3, 3, 2, 2, 15, 8, 5, 1, 43, 20, 13, 10, 3, 14, 7, 3, 11, 8, 3, 8, 5, 4, 2, 2, 3, 4, 1, 24, 13, 5, 4, 2, 11, 4, 5, 5, 4, 1, 13, 6, 5, 5, 4, 2, 7, 5, 3, 1, 3, 3, 2, 2, 31, 14, 10, 3 (list; graph; listen)
OFFSET

0,3

REFERENCES

S. Wolfram, A New Kind of Science, 2001, p. 908.

MAPLE

z := x -> 0: s := x -> (1 + op(1, x)): p := x -> subs(q = x, y -> op(q, y)): c := x -> subs(q = x, y -> eval((op(1, q))([(seq(op(i, q), i = 2..nops(q)))(y)]))): r := x -> subs(q = x, y -> eval(`if`(op(1, y) = 0, (op(1, q))([op(2, y)]), (op(2, q))([r(q)([op(1, y) - 1, op(2, y)]), op(1, y) - 1, op(2, y)])))): seq(r([z, r([s, r([s, r([s, p(2)])])])])([i, 0]), i = 0..109);

CROSSREFS

Sequence in context: A103185 A130513 A114596 this_sequence A021479 A073583 A060136

Adjacent sequences: A083414 A083415 A083416 this_sequence A083418 A083419 A083420

KEYWORD

nonn

AUTHOR

Alex Fink (a00(AT)shaw.ca), Jun 08 2003

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.


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