OFFSET
5,1
COMMENTS
The irregular triangle of numbers is:
..n....Square-full nonzero quadratic residues
..1....
..2....
..3....
..4....
..5.....4
..6.....4
..7.....4
..8.....4
..9.....4
.10.....4..9
.11.....4..9
.12.....4..9
.13.....4..9.12
.14.....4..8..9
.15.....4..9
.16.....4..9
.17.....4..8..9.16
.18.....4..9.16
.19.....4..9.16
.20.....4..9.16
.21.....4..9.16.18
.22.....4..9.12.16.20
.23.....4..8..9.12.16.18
.24.....4..9.12.16
.25.....4..9.16.24
.26.....4..9.12.16.25
.27.....4..9.16.25
.28.....4..8..9.16.25
.29.....4..9.16.20.24.25
.30.....4..9.16.24.25
LINKS
C. H. Gribble, Flattened irregular triangle read by rows as table of j, a(j) for j = 5..69744 (rows 5:1000). [Entries in b-file edited by N. J. A. Sloane, Oct 04 2010]
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Christopher Hunt Gribble, Sep 30 2009
EXTENSIONS
Minor edit and cross-reference added by Christopher Hunt Gribble, Oct 05 2009
Offset set to 5, keyword:tabf added - R. J. Mathar, Oct 09 2009
STATUS
approved