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 A178599 a(n) is the smallest multiple of a(n-1) that is greater than n^n. 1
 1, 4, 28, 280, 3360, 47040, 846720, 16934400, 389491200, 10126771200, 293676364800, 9103967308800, 309534888499200, 11143255985971200, 445730239438848000, 18720670056431616000, 842430152539422720000 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Table of n, a(n) for n=1..17. MATHEMATICA nxt[{n_, a_}]:={n+1, a*Ceiling[(n+1)^(n+1)/a]}; NestList[nxt, {1, 1}, 20][[All, 2]] (* Harvey P. Dale, May 06 2021 *) PROG (PARI) al(n)=local(r, t); vector(n, k, if(k==1, r=t=1, r*=(t=ceil(k^k/r)))) CROSSREFS Cumulative product of A178598. Sequence in context: A032274 A182964 A306228 * A007559 A138208 A071212 Adjacent sequences: A178596 A178597 A178598 * A178600 A178601 A178602 KEYWORD nonn AUTHOR Franklin T. Adams-Watters, May 30 2010 STATUS approved

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Last modified September 22 12:42 EDT 2023. Contains 365531 sequences. (Running on oeis4.)