A103956 A nonsense sequence.

1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 2, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 1, 1, 2, 1, 2, 1, 2, 1, 3, 1, 2, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 1, 2, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1, 1, 2, 1, 3, 1, 2, 1, 3, 1, 2, 1

Offset

0,4

Links

Table of n, a(n) for n=0..104.

Formula

1-> {1, 2} 2->{1, 3} 3->1 nested nest of substitution list are taken in a chaotic order.

Mathematica

Conway[1] = Conway[2] = 1;
Conway[n_Integer?Positive] := Conway[n] = Conway[Conway[n - 1]] + Conway[n - Conway[n - 1]]
s[1] = {1, 2}; s[2] = {1, 3}; s[3] = {1};
t[a_] := Join[a, Flatten[s /@ a]];
p[0] = {1}; p[1] = t[{1}];
p[n_] := t[p[n - 1]]
aa = Flatten[Table[p[If[n > 0, Conway[n], n]], {n, 0, 7}]]

Crossrefs

Cf. A073058, A103684.

Sequence in context: A233285 A233284 A112195 * A103957 A232550 A363851

Adjacent sequences: A103953 A103954 A103955 * A103957 A103958 A103959

Keyword

nonn,uned,less

Author

Roger L. Bagula, Mar 30 2005

Status

approved