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The Hwang-Deutsch function f_4(n).
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%I #11 May 11 2024 09:12:29

%S 4,5,6,7,9,11,13,16,20,24,29,35,43,51,61,74,89,105,124,150,180,212,

%T 251,303,362,426,504,607,726,854,1011,1217,1454,1710,2024,2437,2912,

%U 3424,4051,4877,5826,6850,8105,9756,11655,13703,16213,19516,23313,27409,32428,39033,46627,54819,64857

%N The Hwang-Deutsch function f_4(n).

%H Frank K. Hwang and David N. Deutsch, <a href="http://dx.doi.org/10.1145/321738.321749">A class of merging algorithms</a>, Journal of the ACM (JACM) 20.1 (1973): 148-159.

%Y Cf. A260795, A260996.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Aug 09 2015

%E More terms from _Amiram Eldar_, May 11 2024