login
Numbers k such that the k-th word in A342910 starts with 0 and ends with 0.
5

%I #10 Jun 26 2021 15:46:26

%S 1,3,6,9,10,15,16,18,24,25,27,28,31,37,39,42,43,45,48,49,54,57,60,64,

%T 66,69,72,73,75,76,81,82,85,87,91,94,97,100,105,109,111,112,114,115,

%U 117,123,124,126,129,130,132,135,138,142,144,147,148,151,159,162

%N Numbers k such that the k-th word in A342910 starts with 0 and ends with 0.

%C The sequences A344158-A344161 partition the positive integers. See A342910 for a guide to related sequences.

%e The first twenty words w(n): 0, 1, 00, 01, 10, 000, 001, 11, 010, 0000, 100, 0001, 011, 101, 0010, 00000, 110, 0100, 00001, 1000; so a(1) = 1, a(2) = 3.

%t (See A342910.)

%Y Cf. A342910, A344159, A344160, A344161.

%K nonn,base

%O 1,2

%A _Clark Kimberling_, May 31 2021