login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Positive numbers that are not the sum of a triangular number, a fourth power and two positive Fibonacci numbers.
8

%I #6 May 02 2016 07:34:31

%S 1,787182,1046727,1314765,1586115,1807851,1823858,1834699,1863616,

%T 1990785,2018554,2020769,2069231,2120550,2134796,2153345,2176870,

%U 2311342,2508954,2540041,2657052,2673627,2730026,2749536,2750166

%N Positive numbers that are not the sum of a triangular number, a fourth power and two positive Fibonacci numbers.

%C The triangular number and the fourth power can be equal to 0.

%C There are 4445776 such numbers up to 10^9, the last one in this range being 999999850.

%Y Cf. A115171, A115172, A115173, A115174, A115176, A115177.

%K nonn

%O 1,2

%A _Giovanni Resta_, Jan 15 2006