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A140897 Positions of hexagonal numbers in the EKG sequence. 1

%I

%S 1,4,11,26,39,59,93,110,148,174,218,255,321,353,410,471,536,594,685,

%T 739,816,878,990,1069,1171,1261,1374,1448,1580,1696,1837,1924,2049,

%U 2185,2307,2448,2620,2717,2874,3036,3185,3350,3514,3679,3841,3976,4201,4373

%N Positions of hexagonal numbers in the EKG sequence.

%e The hexagonal number 4560 is located at position 4373 in the EKG sequence.

%Y Cf. A000384, A064413.

%K nonn

%O 1,2

%A _Parthasarathy Nambi_, Jul 24 2008

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Last modified October 21 14:18 EDT 2021. Contains 348155 sequences. (Running on oeis4.)