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A074600
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a(n) = 2^n + 5^n.
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56
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2, 7, 29, 133, 641, 3157, 15689, 78253, 390881, 1953637, 9766649, 48830173, 244144721, 1220711317, 6103532009, 30517610893, 152587956161, 762939584197, 3814697527769, 19073486852413, 95367432689201, 476837160300277
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OFFSET
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0,1
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COMMENTS
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REFERENCES
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Miller, Steven J., ed. Benford's Law: Theory and Applications. Princeton University Press, 2015. See page 14.
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LINKS
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FORMULA
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a(n) = 5*a(n-1)-3*2^(n-1) = 7*a(n-1)- 10*a(n-2). [Corrected by Zak Seidov, Oct 24 2009]
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MATHEMATICA
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Table[2^n + 5^n, {n, 0, 25}]
LinearRecurrence[{7, -10}, {2, 7}, 30] (* Harvey P. Dale, May 09 2019 *)
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PROG
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CROSSREFS
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Cf. A000051, A034472, A052539, A034474, A062394, A034491, A062395, A062396, A007689, A063376, A063481, A074601-A074624, A010697, A094475, A337429.
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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