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 A157452 Number generated by regarding the numbers in row n of A003983 as digits of a base n number. 0

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

%S 1,3,16,105,961,11137,160000,2738385,54479161,1234554321,31384248336,

%T 884241045961,27342890695849,920521266133785,33512287502995456,

%U 1311768467139281697,54933923639963082961,2450641333396432006369

%N Number generated by regarding the numbers in row n of A003983 as digits of a base n number.

%C We are regarding A003983 as a triangle, not as an array by antidiagonals.

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

%e Row 4 of A003983 is 1,2,2,1. The number 1221 in base 4 is 4^3 + 2*4^2 + 2*4 + 1 = 105, so a(4) = 105.

%t t[n_, m_] =Min[m, n - m + 1];

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

%Y A139038, A003983

%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 February 28 07:05 EST 2024. Contains 370387 sequences. (Running on oeis4.)