|
Search: id:A014771
|
|
|
| A014771 |
|
Squares of odd hexagonal numbers. |
|
+0
1
|
|
| 1, 225, 2025, 8281, 23409, 53361, 105625, 189225, 314721, 494209, 741321, 1071225, 1500625, 2047761, 2732409, 3575881, 4601025, 5832225, 7295401, 9018009, 11029041, 13359025, 16040025, 19105641, 22591009, 26532801
(list; graph; listen)
|
|
|
OFFSET
|
1,2
|
|
|
FORMULA
|
G.f.: x*(1+220*x+910*x^2+396*x^3+9*x^4)/(1-x)^5 [From Maksym Voznyy (voznyy(AT)mail.ru), Aug 11 2009]
|
|
CROSSREFS
|
Sequence in context: A060861 A076395 A105925 this_sequence A134741 A110204 A167035
Adjacent sequences: A014768 A014769 A014770 this_sequence A014772 A014773 A014774
|
|
KEYWORD
|
nonn,easy
|
|
AUTHOR
|
Mohammad K. Azarian (ma3(AT)evansville.edu)
|
|
EXTENSIONS
|
G.f. proposed by Maksym Voznyy checked and corrected by R. J. Mathar, Sep 16 2009.
More terms from Erich Friedman (erich.friedman(AT)stetson.edu).
|
|
|
Search completed in 0.002 seconds
|
