This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A164855 #14 Jun 02 2025 01:52:52 %S A164855 1,101,1,10100,102,1,1010000,10202,103,1,101000000,1020202,10305,104, %T A164855 1,10100000000,102020202,1030507,10409,105,1,1010000000000, %U A164855 10202020202,103050709,1040916,10514,106,1,101000000000000,1020202020202 %N A164855 Generalized Lucas-Pascal triangle: (101*100^n,1). %F A164855 T(0,0)=1, T(n+1,0)=101*100^n, T(n,n)=1, T(n,k)=T(n-1,k-1)+T(n-1,k) for 0<k<n. - _Philippe Deléham_, Dec 27 2013 %e A164855 Triangle begins: %e A164855 1 %e A164855 101,1 %e A164855 10100,102,1 %e A164855 1010000,10202,103,1 %e A164855 101000000,1020202,10305,104,1 %e A164855 10100000000,102020202,1030507,10409,105,1 %e A164855 1010000000000,10202020202,103050709,1040916,10514,106,1 %e A164855 101000000000000,1020202020202,10305070911,104091625,1051430,10620,107,1 %p A164855 A164855 := proc(n,k) %p A164855 option remember; %p A164855 if n=k then %p A164855 1; %p A164855 elif k>n or k<0 then %p A164855 0; %p A164855 elif k = 0 then %p A164855 101*100^(n-1) ; %p A164855 else %p A164855 procname(n-1,k-1)+procname(n-1,k) ; %p A164855 end if; %p A164855 end proc: %p A164855 seq(seq(A164855(n,k),k=0..n),n=0..12) ; # _R. J. Mathar_, Nov 03 2016 %Y A164855 Cf. A164847, A164851, A029635, A228196. %K A164855 nonn,tabl,easy %O A164855 0,2 %A A164855 _Mark Dols_, Aug 28 2009 %E A164855 Initial 1 added by _Philippe Deléham_, Dec 27 2013