|
Search: id:A069973
|
|
|
| A069973 |
|
(Sum of digits of n)^3 - (sum of digits of n^3). |
|
+0
1
|
|
| 0, 0, 0, 18, 54, 117, 207, 333, 504, 711, 0, 0, 9, 45, 108, 198, 324, 495, 711, 972, 0, 9, 45, 108, 198, 324, 486, 702, 981, 1305, 18, 36, 99, 189, 324, 486, 702, 981, 1305, 1701, 54, 99, 189, 315, 486, 711, 972, 1314, 1710, 2169, 117, 198, 324, 477, 702, 972
(list; graph; listen)
|
|
|
OFFSET
|
0,4
|
|
|
COMMENT
|
a(n) = 0 for n's: 1, 2, 10, 11, 20, 100, 101, 110, 111, 200, 1000, ....
|
|
MATHEMATICA
|
f[n_] := Plus @@ IntegerDigits[n]^3 - Plus @@ (IntegerDigits[n^3]); Table[ f[n], {n, 0, 100}]
|
|
CROSSREFS
|
Sequence in context: A056808 A044501 A163758 this_sequence A041630 A088593 A033571
Adjacent sequences: A069970 A069971 A069972 this_sequence A069974 A069975 A069976
|
|
KEYWORD
|
base,easy,nonn
|
|
AUTHOR
|
N. J. A. Sloane (njas(AT)research.att.com) and Robert G. Wilson v (rgwv(AT)rgwv.com), May 04 2002
|
|
|
Search completed in 0.002 seconds
|
