OFFSET
1,2
COMMENTS
1 5 7 11 13 17 19 23 25 29 31 35 37 41 43...
2 4 8 10 14 16 20 22 26 28 32 34 38 40 44...
3 6 9 12 15 18 21 24 27 30 33 36 39 42 45...
REFERENCES
M. Cerasoli, F. Eugeni and M. Protasi, Elementi di Matematica Discreta, Bologna 1988
Emanuele Munarini and Norma Zagaglia Salvi, Matematica Discreta,UTET, CittaStudiEdizioni, Milano 1997
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Giovanni Teofilatto, Nov 14 2003
EXTENSIONS
Corrected and extended by Ray Chandler, Nov 16 2003
STATUS
approved