A263262 - OEIS

%I #7 Nov 09 2015 16:08:43

%S 3,4,11,14,32,44,48,81,86,88,116,130,135,175,184,186,192,200,244,246,

%T 252,262,266,284,286,296,320,326,336,365,370,376,378,380,384,404,406,

%U 428,430,460,482,490,524,529,534,608,624,642,652,654,656,682,690,764,768,772,786,794,796,802,806,810,884,888

%N Row 2 of A263255.

%C Numbers n for which A263254(n) = 2. Numbers that are two edges removed from the infinite trunk (A259934) of the tree defined by edge-relation A049820(child) = parent.

%H Antti Karttunen, <a href="/A263262/b263262.txt">Table of n, a(n) for n = 1..9096</a>

%o (Scheme, with _Antti Karttunen_'s IntSeq-library)

%o (define A263262 (MATCHING-POS 1 0 (lambda (n) (= 2 (A263254 n)))))

%Y Cf. A049820, A259934, A263254, A263255.

%K nonn

%O 1,1

%A _Antti Karttunen_, Nov 07 2015