|
|
A249046
|
|
Self-numbers (A003052) that are multiples of 3 but not of 9.
|
|
2
|
|
|
3, 42, 75, 132, 165, 222, 255, 312, 345, 411, 435, 501, 525, 591, 615, 681, 714, 771, 804, 861, 894, 951, 984, 1032, 1065, 1122, 1155, 1212, 1245, 1311, 1335, 1401, 1425, 1491, 1515, 1581, 1614, 1671, 1704, 1761, 1794, 1851, 1884, 1941, 1974, 2022, 2055, 2112, 2145
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
REFERENCES
|
D. R. Kaprekar, The Mathematics of the New Self Numbers, Privately printed, 311 Devlali Camp, Devlali, India, 1963.
|
|
LINKS
|
|
|
PROG
|
(Haskell)
a249046 n = a249046_list !! (n-1)
a249046_list = filter ((> 0) . flip mod 9) a249045_list
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|