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EXAMPLE
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Triangle begins:
.1;
.1,0;
.2,0,0;
.5,1,0,0;
.14,10,0,0,0;
.42,70,8,0,0,0;
.132,424,160,4,0,0,0;
.429,2382,1978,250,1,0,0,0;
.1430,12804,19508,6276,302,0,0,0,0;
.4862,66946,168608,106492,15674,298,0,0,0,0;
.16796,343772,1337684,1445208,451948,33148,244,0,0,0,0;
.58786,1744314,10003422,16974314,9459090,1614906,61806,162,0,0,0,0;
.208012,8780912,71692452,180308420,161380816,51436848,5090124,103932,84,0,0,0,0;
....
where the g.f. of row n is (1-x)^n*[g.f. of column n of A158825];
g.f. of row n of array A158825 is the n-th iteration of x*C(x):
.1,1,2,5,14,42,132,429,1430,4862,16796,58786,208012,742900,...;
.1,2,6,21,80,322,1348,5814,25674,115566,528528,2449746,...;
.1,3,12,54,260,1310,6824,36478,199094,1105478,6227712,...;
.1,4,20,110,640,3870,24084,153306,993978,6544242,43652340,...;
.1,5,30,195,1330,9380,67844,500619,3755156,28558484,...;
.1,6,42,315,2464,19852,163576,1372196,11682348,100707972,...;
.1,7,56,476,4200,38052,351792,3305484,31478628,303208212,...;
.1,8,72,684,6720,67620,693048,7209036,75915708,807845676,...;
....
ROW-REVERSAL yields triangle A122890:
.1;
.0,1;
.0,0,2;
.0,0,1,5;
.0,0,0,10,14;
.0,0,0,8,70,42;
.0,0,0,4,160,424,132;
.0,0,0,1,250,1978,2382,429;
.0,0,0,0,302,6276,19508,12804,1430; ...
where g.f. of row n = (1-x)^n*[g.f. of column n of A122888];
g.f. of row n of A122888 is the n-th iteration of x+x^2:
.1;
.1,1;
.1,2,2,1;
.1,3,6,9,10,8,4,1;
.1,4,12,30,64,118,188,258,302,298,244,162,84,32,8,1; ...
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