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A128827
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Perfect powers beginning and ending with the same digit.
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1
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1, 4, 8, 9, 121, 343, 484, 676, 1331, 1521, 1681, 4624, 5625, 9409, 10201, 11881, 12321, 14161, 14641, 16641, 17161, 19321, 19881, 21952, 40804, 43264, 44944, 47524, 49284, 50625, 55225, 60516, 64516, 65536, 69696, 79507, 91809, 94249
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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EXAMPLE
| 97^2 = 9409 is a term; 43^3 = 79507 is a term.
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PROG
| (MAGMA) PP:=[1] cat [ n: n in [2..100000] | IsPower(n) ]; [ n: n in PP | k[1] eq k[ #k] where k is Intseq(n, 10) ]; /* Klaus Brockhaus, Apr 16 2007 */
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CROSSREFS
| Cf. A001597 (perfect powers), A075786 (palindromic perfect powers), A129450.
Sequence in context: A098128 A118895 A110811 * A075786 A046450 A077271
Adjacent sequences: A128824 A128825 A128826 * A128828 A128829 A128830
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KEYWORD
| nonn,base
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AUTHOR
| J. M. Bergot (thekingfishb(AT)yahoo.ca), Apr 12 2007
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EXTENSIONS
| Edited, corrected and extended by Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Apr 16 2007
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