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1, 110, 7992, 1111000, 119998800, 5759994240, 1229137654864, 108799998912000, 8007983991992016, 1090799999890920000, 123450846932098824864, 5702399999994297600000, 1195941578346547072508832
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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LINKS
| Harry J. Smith, Table of n, a(n) for n=0,...,80
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PROG
| (PARI) j=[]; for(n=0, 25, j=concat(j, eulerphi( ((10^(n+1)-1)/9)^2) )); j
(PARI) { for (n=0, 80, a=eulerphi(((10^(n + 1) - 1)/9)^2); write("b063751.txt", n, " ", a) ) } [From Harry J. Smith (hjsmithh(AT)sbcglobal.net), Aug 29 2009]
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CROSSREFS
| Cf. A000010, A002477.
Sequence in context: A111600 A111784 A146495 * A163664 A135645 A058935
Adjacent sequences: A063748 A063749 A063750 * A063752 A063753 A063754
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KEYWORD
| easy,nonn
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AUTHOR
| Jason Earls (zevi_35711(AT)yahoo.com), Aug 11 2001
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