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 A157451 Number generated by regarding the numbers in row n of A139038 as digits of a base n number. 0

%I #6 Mar 30 2012 17:35:23

%S 1,3,13,85,806,9583,140050,2434185,49031983,1122332211,28768909071,

%T 816222524845,25389827448220,859153189293015,31417769545499716,

%U 1234605616147931665,51882038993710230701,2321660210597147557819

%N Number generated by regarding the numbers in row n of A139038 as digits of a base n number.

%F t(n,m)== Min[1 + Floor[m/2], 1 + Floor[(n - m)/2]]; a(n)=FromDigits[{Table[t[n, m], {m, 0, n}], n + 1}, n + 1].

%e Row 5 of A139038 is 1,1,2,1,1. 11211 in base 5 = 5^4 + 5^3 + 2*5^2 + 5 + 1 = 806, so a(5) = 806.

%t t[n_, m_] = Min[Floor[(m+1)/2], 1 + Floor[(n - m)/2]];

%t Table[FromDigits[{Table[t[n, m], {m, 1, n}], n}, n], {n, 1, 21}]

%Y A139038

%K nonn,base

%O 1,2

%A _Roger L. Bagula_, Mar 01 2009

%E Edited by _Franklin T. Adams-Watters_, Sep 25 2011

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Last modified April 14 05:31 EDT 2024. Contains 371655 sequences. (Running on oeis4.)