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A111842
Row sums of triangle
A111840
, which shifts columns left and up under matrix cube.
1
1, 2, 7, 46, 595, 16444, 1048303, 162728110, 63746277967, 64594795730680, 172419318632651104, 1229463017642626881490, 23684690483668583872503679, 1244115601652916934000237966330, 179585081405174505374545193721101377
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OFFSET
0,2
LINKS
Table of n, a(n) for n=0..14.
PROG
(PARI) {a(n, q=3)=local(A=Mat(1), B); if(n<0, 0, for(m=1, n+2, B=matrix(m, m); for(i=1, m, for(j=1, i, if(j==i, B[i, j]=1, if(j==1, B[i, j]=(A^q)[i-1, 1], B[i, j]=(A^q)[i-1, j-1])); )); A=B); return(sum(k=0, n, A[n+1, k+1])))}
CROSSREFS
Cf.
A111840
,
A078125
(variant).
Sequence in context:
A340450
A351917
A349640
*
A247883
A027458
A062632
Adjacent sequences:
A111839
A111840
A111841
*
A111843
A111844
A111845
KEYWORD
nonn
AUTHOR
Paul D. Hanna
, Aug 23 2005
STATUS
approved
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Last modified May 13 00:07 EDT 2024. Contains 372497 sequences. (Running on oeis4.)