(Translated by https://www.hiragana.jp/)
# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a115171 Showing 1-1 of 1 %I A115171 #5 Mar 30 2012 17:40:34 %S A115171 3970902,4851691,7921800,39022919,102132857,110468517,368495972, %T A115171 391099413,395147912,421129348,452808398,608389509,667231451, %U A115171 693386307,698864465,776218485,1005771844,1335351479,1336652359,1485470432 %N A115171 Positive numbers that are not the sum of a triangular number, a square and a positive Fibonacci number. %C A115171 Comment from Kurt Foster, Jan 20 2009: If one is allowed to use the Fibonacci number zero, then many of these terms disappear. For example, one has 4851691 = 1885^2 + 1611*1612/2 + F_0, 7921800 = 1923^2 + 2906*2907/2 + F_0. See A144642. %C A115171 Since the number of integers up to B of the form x^2+T_y is about a constant times B/sqrt(log B), heuristics predict that the sequence should be infinite. - Bjorn Poonen, in a posting to the Number Theory List, Dec 22 2008 %H A115171 Donovan Johnson, Table of n, a(n) for n = 1..176 (terms < 4*10^10) %Y A115171 Cf. A115172, A115173, A115174, A115175, A115176, A115177, A144642. %K A115171 nonn %O A115171 1,1 %A A115171 _Giovanni Resta_, Jan 15 2006 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE