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 A115176 Positive numbers that are not the sum of two squares and a positive Fibonacci number. 8
 256, 384, 872, 1224, 1512, 1728, 2661, 2675, 2824, 3528, 4656, 5150, 5224, 6016, 6024, 6336, 6592, 6840, 7193, 7528, 7560, 7664, 8016, 8456, 8512, 8952, 8968, 9072, 9696, 9796, 10032, 10300, 10440, 10624, 11000, 11184, 11208, 11256, 11640, 11880 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS There are 2142682 such numbers up to 10^9, the last one in this range being 999999456. LINKS PROG (PARI) isA001481(n)=#bnfisintnorm(bnfinit(z^2+1), n) is(n)=my(k=1, f); while((f=fibonacci(k++))<=n, if(isA001481(n-f), return(0))); 1 \\ Charles R Greathouse IV, Mar 11 2016 CROSSREFS Cf. A115171, A115172, A115173, A115174, A115175, A115177. Sequence in context: A036332 A114987 A046310 * A299156 A221259 A223693 Adjacent sequences:  A115173 A115174 A115175 * A115177 A115178 A115179 KEYWORD nonn AUTHOR Giovanni Resta, Jan 15 2006 STATUS approved

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Last modified April 18 22:45 EDT 2021. Contains 343098 sequences. (Running on oeis4.)