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A175186 a(1)=0. For 1<= n <= 2^m, m>=0, a(n+ 2^m) = a(n)+n. 2
0, 1, 1, 3, 1, 3, 4, 7, 1, 3, 4, 7, 6, 9, 11, 15, 1, 3, 4, 7, 6, 9, 11, 15, 10, 13, 15, 19, 19, 23, 26, 31, 1, 3, 4, 7, 6, 9, 11, 15, 10, 13, 15, 19, 19, 23, 26, 31, 18, 21, 23, 27, 27, 31, 34, 39, 35, 39, 42, 47, 48, 53, 57, 63, 1, 3, 4, 7, 6, 9, 11, 15, 10, 13, 15, 19, 19, 23, 26, 31 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

COMMENTS

a(2^m) = 2^m -1.

LINKS

Table of n, a(n) for n=1..80.

MATHEMATICA

f[l_]:=Join[l, l+Range[Length[l]]]; Nest[f, {0}, 7] (* Ray Chandler, Mar 04 2010 *)

CROSSREFS

Cf. A083741, A175187.

Sequence in context: A162932 A216036 A008924 * A021323 A284619 A147549

Adjacent sequences:  A175183 A175184 A175185 * A175187 A175188 A175189

KEYWORD

easy,nonn

AUTHOR

Leroy Quet, Mar 01 2010

EXTENSIONS

Extended by Ray Chandler, Mar 04 2010

STATUS

approved

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Last modified May 15 01:50 EDT 2021. Contains 343909 sequences. (Running on oeis4.)