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 A157452 Number generated by regarding the numbers in row n of A003983 as digits of a base n number. 0
 1, 3, 16, 105, 961, 11137, 160000, 2738385, 54479161, 1234554321, 31384248336, 884241045961, 27342890695849, 920521266133785, 33512287502995456, 1311768467139281697, 54933923639963082961, 2450641333396432006369 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS We are regarding A003983 as a triangle, not as an array by antidiagonals. LINKS Table of n, a(n) for n=1..18. FORMULA t(n,m)=Min[1 + m, 1 + (n - m)]; a(n)=FromDigits[{Table[t[n, m], {m, 0, n}], n + 1}, n + 1]. EXAMPLE 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. MATHEMATICA t[n_, m_] =Min[m, n - m + 1]; Table[FromDigits[{Table[t[n, m], {m, 1, n}], n}, n], {n, 1, 21}] CROSSREFS A139038, A003983 Sequence in context: A271777 A014304 A063548 * A074551 A135074 A292752 Adjacent sequences: A157449 A157450 A157451 * A157453 A157454 A157455 KEYWORD nonn,base AUTHOR Roger L. Bagula, Mar 01 2009 EXTENSIONS Edited by Franklin T. Adams-Watters, Sep 25 2011 STATUS approved

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Last modified November 28 19:28 EST 2023. Contains 367419 sequences. (Running on oeis4.)