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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

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Last modified December 7 12:36 EST 2022. Contains 358656 sequences. (Running on oeis4.)