

A193360


Concatenation of P{1},P{1,2},P{1,2,3}... (P(A) denote the Power Set of A ordered by the size of the subsets, and in each subset, following the increasing order.


3



1, 1, 2, 1, 2, 1, 2, 3, 1, 2, 1, 3, 2, 3, 1, 2, 3, 1, 2, 3, 4, 1, 2, 1, 3, 1, 4, 2, 3, 2, 4, 3, 4, 1, 2, 3, 1, 2, 4, 1, 3, 4, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 5, 1, 2, 1, 3, 1, 4, 1, 5, 2, 3, 2, 4, 2, 5, 3, 4, 3, 5, 4, 5, 1, 2, 3, 1, 2, 4, 1, 2, 5, 1, 3, 4
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,3


COMMENTS

Fractal sequence.


LINKS

Table of n, a(n) for n=1..86.


MATHEMATICA

t={}; Do[t=Join[t, Subsets[Range[n]]], {n, 1, 5}]; Flatten[t]
Table[Subsets[Range[n]], {n, 5}]//Flatten (* Harvey P. Dale, May 05 2019 *)


CROSSREFS

Sequence in context: A136109 A105265 A351468 * A061394 A248141 A220694
Adjacent sequences: A193357 A193358 A193359 * A193361 A193362 A193363


KEYWORD

nonn


AUTHOR

José María Grau Ribas, Jul 24 2011


STATUS

approved



