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A052041
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Squares lacking the digit zero in their decimal expansion.
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18
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1, 4, 9, 16, 25, 36, 49, 64, 81, 121, 144, 169, 196, 225, 256, 289, 324, 361, 441, 484, 529, 576, 625, 676, 729, 784, 841, 961, 1156, 1225, 1296, 1369, 1444, 1521, 1681, 1764, 1849, 1936, 2116, 2916, 3136, 3249, 3364, 3481, 3721, 3844, 3969, 4225, 4356
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| This sequence is infinite: see A102794 or A102807 for a constructive proof.
Intersection of A052382 and A000290; A168046(a(n))*A010052(a(n))=1. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 01 2009]
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LINKS
| Eric Weisstein's World of Mathematics, Zerofree [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Dec 01 2009]
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FORMULA
| G.f.: (1+x)/(1-x)^3 [From Mohammad K. Azarian (azarian(AT)evansville.edu), Dec 22 2008]
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CROSSREFS
| Cf. A104264, A102265, A102266.
Squares : A052040, A052042, A052043. Cubes : A051750, A051751, A051832, A051833.
Sequence in context: A068854 A068867 A111704 * A018884 A050749 A096599
Adjacent sequences: A052038 A052039 A052040 * A052042 A052043 A052044
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KEYWORD
| nonn,base
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), Dec 15 1999.
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