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A263263 Row 3 of A263255. 2
5, 8, 13, 15, 16, 20, 40, 50, 56, 60, 83, 85, 92, 134, 137, 138, 198, 204, 216, 268, 272, 289, 292, 308, 312, 328, 332, 344, 348, 360, 367, 382, 392, 396, 412, 416, 436, 438, 498, 533, 538, 620, 632, 636, 640, 664, 666, 694, 700, 704, 720, 776, 792, 814, 816, 828, 922, 936, 940, 956, 965, 966, 969, 1032 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Numbers n for which A263254(n) = 3. Numbers that are three edges removed from the infinite trunk (A259934) of the tree defined by edge-relation A049820(child) = parent.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..2047

PROG

(Scheme, with Antti Karttunen's IntSeq-library)

(define A263263 (MATCHING-POS 1 0 (lambda (n) (= 3 (A263254 n)))))

CROSSREFS

Cf. A049820, A259934, A263254, A263255.

Sequence in context: A046038 A070127 A070128 * A314420 A030606 A090661

Adjacent sequences:  A263260 A263261 A263262 * A263264 A263265 A263266

KEYWORD

nonn

AUTHOR

Antti Karttunen, Nov 07 2015

STATUS

approved

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Last modified October 15 17:24 EDT 2019. Contains 328037 sequences. (Running on oeis4.)