caa a22 4500 463178289 CHVBK 20180406164831.0 cr unu---uuuuu 170326e20070601xx s 000 0 eng 10.1007/s11139-006-0240-6 doi (NATIONALLICENCE)springer-10.1007/s11139-006-0240-6 On the number of primitive representations of integers as sums of squares [Elektronische Daten] [Shaun Cooper, Michael Hirschhorn] Formulas for the number of primitive representations of any integer n as a sum of k squares are given, for 2 ≤ k ≤ 8, and for certain values of n, for 9 ≤ k ≤ 12. The formulas have a similar structure and are striking for their simplicity. Springer Science + Business Media, LLC, 2006 Sum of squares nationallicence Möbius inversion nationallicence Generating function nationallicence Divisor sum nationallicence Cooper Shaun Institute of Information and Mathematical Sciences, Massey University, North Shore Mail Centre, Private Bag 102904, Auckland, New Zealand aut Hirschhorn Michael School of Mathematics, University of New South Wales, 2052, Sydney, Australia aut The Ramanujan Journal Kluwer Academic Publishers 13/1-3(2007-06-01), 7-25 1382-4090 13:1-3<7 2007 13 11139 https://doi.org/10.1007/s11139-006-0240-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11139-006-0240-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Cooper Shaun Institute of Information and Mathematical Sciences, Massey University, North Shore Mail Centre, Private Bag 102904, Auckland, New Zealand aut NATIONALLICENCE 700 1- Hirschhorn Michael School of Mathematics, University of New South Wales, 2052, Sydney, Australia aut NATIONALLICENCE 773 0- The Ramanujan Journal Kluwer Academic Publishers 13/1-3(2007-06-01), 7-25 1382-4090 13:1-3<7 2007 13 11139 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer