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A088156
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Value of n-th digit in vigesimal representation of n^n.
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7
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1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 8, 4, 19, 4, 17, 3, 7, 6, 11, 5, 3, 6, 5, 13, 8, 15, 19, 4, 16, 2, 12, 5, 5, 9, 6, 5, 9, 17, 1, 14, 11, 10, 15, 15, 13, 2, 8, 9, 1, 18, 3, 15, 15, 17, 10, 1, 5, 0, 3, 16, 4, 17, 14, 12, 12, 6, 5, 8, 16, 8, 3, 6, 12, 19, 2, 14
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,22
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COMMENTS
| a(n)=d(n) with n^n = Sum(d(k)*20^k: 0<=d(k)<20, k>=0).
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LINKS
| Eric Weisstein's World of Mathematics, Vigesimal
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FORMULA
| a(n) = floor(n^n / 20^n) mod 20.
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EXAMPLE
| n=30, 30^30=205891132094649*10^30 -> [93B83A81A7CBBA03C2241239C3C4840000000], a(30)=8.
a(0)=1, a(k)=0 for 0<k<20 and a(20)=1.
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CROSSREFS
| Cf. A000312, A088150, A088151, A088152, A088153, A088154, A088155, A088157.
Sequence in context: A110003 A035302 A104772 * A019193 A054788 A193851
Adjacent sequences: A088153 A088154 A088155 * A088157 A088158 A088159
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KEYWORD
| nonn,base
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AUTHOR
| Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 20 2003
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