In this paper, we find all the sums of three Fibonacci numbers which are close to a power of 2. This paper continues and extends the previous work of Hasanalizade [8].
For any integer k ≥ 2, let {Qdenote the k-generalized Pell-Lucas sequence which starts with 0, . . . , 2, 2(k terms) where each next term is the sum of the k preceding terms. In this paper, we find all the k-generalized Pell-Lucas numbers that are concatenations of two repdigits.
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