Geodesic
Iterated digit sums, recursions and primality
Communications in Mathematics, Tome 14 (2006) no. 1, pp. 27-35.

Voir la notice de l'article provenant de la source Czech Digital Mathematics Library

We examine the congruences and iterate the digit sums of integer sequences. We generate recursive number sequences from triple and quintuple product identities. And we use second order recursions to determine the primality of special number systems.
Classification : 11A07, 11A51, 11A63, 11B37, 11B39, 11B50
Keywords: sum of digits; recursive sequences; triple product identity; quintuple product; primality testing 
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Ericksen, Larry. Iterated digit sums, recursions and primality. Communications in Mathematics, Tome 14 (2006) no. 1, pp. 27-35. http://geodesic.mathdoc.fr/item/COMIM_2006__14_1_a4/