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 A269938 Row sums of A268434. 2
 1, 1, 3, 21, 269, 5501, 164871, 6826353, 373877161, 26202082729, 2288805048251, 243958190401341, 31176599353144853, 4706999020319020101, 829102910675624591839, 168548158717259440652601, 39174415082612704149839761, 10324151597447856368055425553, 3062691062053211798175516784691 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS MAPLE A269938 := proc(n) local T; T := proc(n, k) option remember; if n=k then 1 elif k<0 or k>n then 0 else T(n-1, k-1)+((n-1)^2+k^2)*T(n-1, k) fi end: add(T(n, k), k=0..n) end: seq(A269938(n), n=0..18); CROSSREFS Cf. A268434. Sequence in context: A012131 A221094 A098278 * A277454 A215127 A227820 Adjacent sequences:  A269935 A269936 A269937 * A269939 A269940 A269941 KEYWORD nonn AUTHOR Peter Luschny, Mar 08 2016 STATUS approved

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Last modified November 13 11:24 EST 2018. Contains 317133 sequences. (Running on oeis4.)