A087867 n^2-79*n+1601 as n runs through the lucky numbers.

1523, 1373, 1097, 971, 743, 641, 383, 251, 113, 83, 47, 53, 131, 173, 593, 797, 911, 1163, 1301, 1601, 2297, 2903, 3581, 4331, 5153, 5741, 7697, 8051, 8783, 9161, 10343, 12473, 14321, 15293, 16811, 17333, 22391, 23603, 24221, 26123, 27431, 29453

Offset

1,1

References

C. Stanley Ogilvy and John T. Anderson, Excursions in Number Theory, Dover. New York: 1988

Links

Table of n, a(n) for n=1..42.

Example

Using 16th Lucky Number (A000959), 67^2-79*67+1601 returns 797.

Prog

{PARI} q=listcreate(57); listinsert(q, 1, 1); listinsert(q, 3, 2); .. listinsert(q, 303, 57); for(k=1, 57, c=q[k]^2-79*q[k]+1601; write("A087867.txt", c)) - Bill McEachen, May 24 2006

Crossrefs

Cf. A000959.

Sequence in context: A031756 A226702 A318791 * A073104 A031537 A217387

Adjacent sequences: A087864 A087865 A087866 * A087868 A087869 A087870

Keyword

easy,nonn

Author

Bill McEachen, Oct 10 2003

Extensions

Corrected and extended by Ray Chandler, Oct 18 2003

Status

approved