login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A189637 Positions of 1 in A116178; complement of A189636. 5
3, 6, 8, 9, 12, 15, 17, 18, 21, 23, 24, 26, 27, 30, 33, 35, 36, 39, 42, 44, 45, 48, 50, 51, 53, 54, 57, 60, 62, 63, 66, 68, 69, 71, 72, 75, 77, 78, 80, 81, 84, 87, 89, 90, 93, 96, 98, 99, 102, 104, 105, 107, 108, 111, 114, 116, 117, 120, 123, 125, 126, 129, 131, 132, 134, 135, 138, 141, 143, 144, 147, 149, 150, 152, 153, 156, 158, 159, 161, 162, 165, 168, 170, 171, 174 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A116178.

LINKS

Table of n, a(n) for n=1..85.

MATHEMATICA

t = Nest[Flatten[# /. {0->{0, 0, 1}, 1->{0, 1, 1}}] &, {0}, 5] (*A116178*)

f[n_] := t[[n]]

Flatten[Position[t, 0]] (*A189636*)

Flatten[Position[t, 1]] (*A189637*)

s[n_] := Sum[f[i], {i, 1, n}]; s[0] = 0;

Table[s[n], {n, 1, 120}] (*A189638*)

CROSSREFS

Cf. A116178, A189636, A189638.

Sequence in context: A155723 A095277 A185717 * A182338 A267415 A140516

Adjacent sequences:  A189634 A189635 A189636 * A189638 A189639 A189640

KEYWORD

nonn

AUTHOR

Clark Kimberling, Apr 24 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 1 01:12 EDT 2020. Contains 333152 sequences. (Running on oeis4.)