|
| |
|
|
A111445
|
|
Triangle read by rows: row n contains the first n numbers whose squares end in n^2.
|
|
4
| |
|
|
1, 2, 8, 3, 7, 13, 4, 46, 54, 96, 5, 15, 25, 35, 45, 6, 44, 56, 94, 106, 144, 7, 43, 57, 93, 107, 143, 157, 8, 42, 58, 92, 108, 142, 158, 192, 9, 41, 59, 91, 109, 141, 159, 191, 209, 10, 90, 110, 190, 210, 290, 310, 390, 410, 490, 11, 239, 261, 489, 511, 739, 761, 989
(list; table; graph; refs; listen; history; internal format)
|
|
|
|
OFFSET
| 1,2
|
|
|
EXAMPLE
| Triangle begins:
1;
2,8;
3,7,13;
4,46,54,96;
5,15,25,35,45;
|
|
|
MAPLE
| p:=proc(n) local A, k: A:={}: for k from n to 3000 do if type((k^2-n^2)/10^(nops(convert(n^2, base, 10))), integer)=true then A:=A union {k} else A:=A: fi od: seq(A[j], j=1..n): end: for n from 1 to 11 do p(n) od; # yields sequence in triangular form (Deutsch)
|
|
|
CROSSREFS
| Sequence in context: A133840 A190732 A081349 * A076696 A011057 A082236
Adjacent sequences: A111442 A111443 A111444 * A111446 A111447 A111448
|
|
|
KEYWORD
| base,nonn,tabl
|
|
|
AUTHOR
| Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 03 2005
|
|
|
EXTENSIONS
| More terms from Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 05 2005
|
| |
|
|
