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A227607 Number of lattice paths from {10}^n to {0}^n using steps that decrement one component such that for each point (p_1,p_2,...,p_n) we have p_1<=p_2<=...<=p_n. 1
1, 512, 29324405, 23076216957520, 93462550593036735356, 1174228543974568589770758656, 33976468300798036566458244068649205, 1869718376047919275097272876105318640045150, 171650174624972457949599385901886660192203614365332 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..8.

MAPLE

b:= proc(l) option remember; `if`(l[-1]=0, 1, add(add(b(subsop(

      i=j, l)), j=`if`(i=1, 0, l[i-1])..l[i]-1), i=1..nops(l)))

    end:

a:= n-> `if`(n=0, 1, b([10$n])):

seq(a(n), n=0..10);

CROSSREFS

Row n=10 of A227578.

Sequence in context: A016833 A103352 A013848 * A016881 A227663 A016941

Adjacent sequences:  A227604 A227605 A227606 * A227608 A227609 A227610

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 17 2013

STATUS

approved

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Last modified October 16 07:30 EDT 2019. Contains 328051 sequences. (Running on oeis4.)