A090243 - OEIS

A090243

Permutation of natural numbers generated by 4-rowed array shown below.

1, 7, 2, 11, 6, 3, 13, 10, 5, 4, 19, 14, 9, 8, 23, 18, 15, 12, 25, 22, 17, 16, 31, 26, 21, 20, 35, 30, 27, 24, 37, 34, 29, 28, 43, 38, 33, 32, 47, 42, 39, 36, 49, 46, 41, 40, 55, 50, 45, 44, 59, 54, 51, 48, 61, 58, 53, 52, 67, 62, 57, 56, 71, 66, 63, 60, 73, 70, 65, 64, 79, 74

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

COMMENTS

1 7 11 13 19 23 25 31 35 37 43 47 ...

2 6 10 14 18 22 26 30 34 38 42 46 ...

3 5 9 15 17 21 27 29 33 39 41 45 ...

4 8 12 16 20 24 28 32 36 40 44 48 ...

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

LINKS