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A277738 Positions of 2's in A277735. 4
3, 12, 16, 20, 27, 34, 43, 47, 56, 60, 69, 73, 77, 84, 93, 97, 101, 108, 117, 121, 125, 132, 139, 148, 152, 161, 165, 169, 176, 183, 192, 196, 205, 209, 213, 220, 227, 236, 240, 249, 253, 262, 266, 270, 277, 286, 290, 294, 301, 308, 317, 321, 330, 334, 343, 347, 351, 358, 367, 371, 375, 382, 389, 398 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

{A277736, A277737, A277738} forms a three-way partition of the positive integers, similar to {A003144, A003145, A003146}.

LINKS

N. J. A. Sloane, Table of n, a(n) for n = 1..10609

MAPLE

with(ListTools);

T:=proc(S) Flatten(subs( {0=[0, 1], 1=[2, 0], 2=[0]}, S)); end;

S:=[0];

for n from 1 to 14 do S:=T(S); od:

S; # A277735

p0:=[]: p1:=[]: p2:=[]:

for i from 1 to nops(S) do

j:=S[i];

if j=0 then p0:=[op(p0), i];

elif j=1 then p1:=[op(p1), i];

else p2:=[op(p2), i]; fi: od:

p0; # A277736

p1; # A277737

p2: # A277738

CROSSREFS

Cf. A277735, A277736, A277737.

Cf. also A003144, A003145, A003146.

Sequence in context: A013191 A009783 A192786 * A064106 A022411 A115229

Adjacent sequences:  A277735 A277736 A277737 * A277739 A277740 A277741

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Nov 07 2016

STATUS

approved

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Last modified August 20 22:45 EDT 2019. Contains 326155 sequences. (Running on oeis4.)