Journal of Integer Sequences, Vol. 20 (2017), Article 17.3.6

Jacobsthal and Jacobsthal-Lucas Numbers and Sums Introduced by Jacobsthal and Tverberg

Kritkhajohn Onphaeng and Prapanpong Pongsriiam
Department of Mathematics
Faculty of Science
Silpakorn University
Nakhon Pathom 73000


We study the sums introduced by Jacobsthal and Tverberg and show that the extreme values of the sums are connected with Jacobsthal and Jacobsthal-Lucas numbers.

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(Concerned with sequences A001045 A014551.)

Received September 28 2016; revised version received January 4 2017. Published in Journal of Integer Sequences, January 14 2017.

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