The On-Line Encyclopedia of Integer Sequences (OEIS)

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A153242

Positions of general trees in A014486 whose degree is not one.
(history; published version)

#4 by Russ Cox at Sat Mar 31 13:21:17 EDT 2012

AUTHOR

_Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), _, Dec 21 2008

Discussion

Sat Mar 31

13:21

OEIS Server: https://oeis.org/edit/global/881

#3 by N. J. A. Sloane at Thu Nov 11 07:34:06 EST 2010

LINKS

A. Karttunen, <a href="/A153242/b153242.txt">Table of n, a(n) for n = 0..1000</a>

KEYWORD

nonn,new

nonn

#2 by N. J. A. Sloane at Fri Feb 27 03:00:00 EST 2009

LINKS

A. Karttunen, <a href="http://www.research.att.com/~njas/sequences/b153242.txt">Table of n, a(n) for n = 0..1000</a>

KEYWORD

nonn,new

nonn

#1 by N. J. A. Sloane at Fri Jan 09 03:00:00 EST 2009

NAME

Positions of general trees in A014486 whose degree is not one.

DATA

0, 2, 4, 5, 6, 9, 10, 11, 12, 13, 14, 15, 16, 19, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 47, 51, 52, 53, 56, 60, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93

OFFSET

0,2

LINKS

A. Karttunen, <a href="http://www.research.att.com/~njas/sequences/b153242.txt">Table of n, a(n) for n = 0..1000</a>

CROSSREFS

I.e. such i that A057515(i) is not 1. Complement of A057548. For n>0, gives the indices of trees whose degree is greater than one. (At least two top-level branches).

KEYWORD

nonn,new

AUTHOR

Antti Karttunen (His-Firstname.His-Surname(AT)gmail.com), Dec 21 2008

STATUS

approved