|
Search: id:A116965
|
|
|
| A116965 |
|
Integers that can be expressed as the sum of 2 double factorials. |
|
+0
1
|
|
| 2, 3, 4, 5, 6, 9, 10, 11, 16, 17, 18, 23, 30, 49, 50, 51, 56, 63, 96, 106, 107, 108, 113, 120, 153, 210, 385, 386, 387, 392, 399, 432, 489, 768, 946, 947, 948, 953, 960, 993, 1050, 1329, 1890, 3841, 3842, 3843, 3848, 3855, 3888, 3945, 4224, 4785, 7680, 10396
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
EXAMPLE
|
16 = 0!! + 5!! = 1!! + 5!!.
113 = 4!! + 7!!
|
|
MATHEMATICA
|
Take[Union@Flatten@Table[i!! + j!!, {i, 13}, {j, 0, i}], 56] (* Robert G. Wilson v *)
|
|
CROSSREFS
|
Cf. A111222.
Sequence in context: A032975 A119356 A137582 this_sequence A123054 A093703 A117073
Adjacent sequences: A116962 A116963 A116964 this_sequence A116966 A116967 A116968
|
|
KEYWORD
|
easy,nonn
|
|
AUTHOR
|
Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Mar 31 2006
|
|
EXTENSIONS
|
More terms from Robert G. Wilson v (rgwv(at)rgwv.com), Apr 01 2006
|
|
|
Search completed in 0.002 seconds
|
