A079668 Start with 1; at n-th step, write down what is in the sequence so far.

1, 1, 1, 3, 1, 4, 1, 0, 2, 1, 3, 1, 0, 6, 1, 1, 2, 2, 3, 1, 4

Offset

1,4

Comments

After 1 1 1 3 1, we see "4 1's, 0 2's and 1 3", so next terms are 4 1 0 2 3 1.

Links

Table of n, a(n) for n=1..21.

Mathematica

s={1}; Do[s=Flatten[{s, {Count[s, #], #}&/@Range[Min[s], Max[s]]}], {20}]; s (* Peter J. C. Moses, Mar 21 2013 *)

Crossrefs

Cf. A005150. For other versions see A051120, A079585, A079586.

Sequence in context: A245434 A305100 A051512 * A144211 A260510 A125291

Adjacent sequences: A079665 A079666 A079667 * A079669 A079670 A079671

Keyword

nonn,base

Author

N. J. A. Sloane Jan 26 2003

Status

approved