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A361390
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Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) is carryless n^k base 10.
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1
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1, 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 4, 3, 1, 0, 1, 8, 9, 4, 1, 0, 1, 6, 7, 6, 5, 1, 0, 1, 2, 1, 4, 5, 6, 1, 0, 1, 4, 3, 6, 5, 6, 7, 1, 0, 1, 8, 9, 4, 5, 6, 9, 8, 1, 0, 1, 6, 7, 6, 5, 6, 3, 4, 9, 1, 0, 1, 2, 1, 4, 5, 6, 1, 2, 1, 10, 1, 0, 1, 4, 3, 6, 5, 6, 7, 6, 9, 100, 11, 1, 0, 1, 8, 9, 4, 5, 6, 9, 8, 1, 1000, 121, 12, 1
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OFFSET
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0,9
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LINKS
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EXAMPLE
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4 * 4 = 16, so T(4,2) = 6. 6 * 4 = 24, so T(4,3) = 4.
Square array begins:
1, 0, 0, 0, 0, 0, 0, 0, ...
1, 1, 1, 1, 1, 1, 1, 1, ...
1, 2, 4, 8, 6, 2, 4, 8, ...
1, 3, 9, 7, 1, 3, 9, 7, ...
1, 4, 6, 4, 6, 4, 6, 4, ...
1, 5, 5, 5, 5, 5, 5, 5, ...
1, 6, 6, 6, 6, 6, 6, 6, ...
1, 7, 9, 3, 1, 7, 9, 3, ...
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PROG
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(PARI) T(n, k) = fromdigits(Vec(Pol(digits(n))^k)%10);
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CROSSREFS
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KEYWORD
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AUTHOR
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STATUS
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approved
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