|
Search: id:A109593
|
|
|
| A109593 |
|
Sequence and first differences include all odd numbers exactly once. |
|
+0
1
|
|
| 1, 4, 9, 16, 27, 40, 55, 72, 91, 112, 135, 160, 189, 220, 253, 288, 325, 364, 405, 448, 493, 540, 589, 640, 693, 750, 809, 870, 933, 998, 1065, 1134, 1205, 1278, 1353, 1430, 1509, 1590, 1673, 1758, 1845, 1934, 2027, 2122, 2219, 2318, 2419, 2522, 2627, 2734
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
COMMENT
|
See A005228.
|
|
MATHEMATICA
|
a = {1}; d = 3; k = 1; Do[ While[ Position[a, d] != {}, d += 2 ]; k = k + d; d += 2; a = Append[a, k], {n, 49} ]; a (* Robert G. Wilson v *)
|
|
CROSSREFS
|
Cf. A005228.
Sequence in context: A100216 A138994 A066969 this_sequence A138981 A138993 A008019
Adjacent sequences: A109590 A109591 A109592 this_sequence A109594 A109595 A109596
|
|
KEYWORD
|
base,easy,nonn
|
|
AUTHOR
|
Eric Angelini (eric.angelini(AT)kntv.be), Aug 30 2005
|
|
EXTENSIONS
|
Corrected and extended by Robert G. Wilson v (rgwv(at)rgwv.com), Sep 28 2005
|
|
|
Search completed in 0.002 seconds
|
