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%I #6 Mar 27 2024 12:29:55
%S 1,12,14,32,53,76,104,145,179,226,269,325,368,450,507,585,674,749,827,
%T 917,1019,1127,1230,1343,1473,1595,1708,1832,1997,2111,2257,2408,2571,
%U 2727,2888,3054,3198,3420,3587,3766,4015,4161,4383,4558,4803,5033,5245
%N Positions of heptagonal numbers in the EKG sequence.
%e 5688 is a heptagonal number located at position 5470 in the EKG sequence.
%Y Cf. A000566, A064413.
%K nonn
%O 1,2
%A _Parthasarathy Nambi_, Jul 15 2008
%E a(2) and a(3) interchanged by _Georg Fischer_, Mar 27 2024
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