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 A125794 Column 4 of table A125790; also equals row sums of matrix power A078121^4. 10
 1, 5, 25, 165, 1625, 25509, 664665, 29559717, 2290267225, 314039061413, 77160820913241, 34317392762489765, 27859502236825957465, 41575811106337540656037, 114746581654195790543205465, 588765612737696531880325270437, 5642056933026209681424588087899225 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 COMMENTS Triangle A078121 shifts left one column under matrix square and is related to partitions into powers of 2. LINKS Alois P. Heinz, Table of n, a(n) for n = 0..50 PROG (PARI) a(n)=local(p=4, q=2, A=Mat(1), B); for(m=1, n+1, B=matrix(m, m); for(i=1, m, for(j=1, i, if(j==i || j==1, B[i, j]=1, B[i, j]=(A^q)[i-1, j-1]); )); A=B); return(sum(c=0, n, (A^p)[n+1, c+1])) CROSSREFS Cf. A125790, A078121; columns: A002577, A125792, A125793, A125795, A125796; diagonals: A125797, A125798. A diagonal of A152977. Sequence in context: A144887 A181344 A134007 * A109793 A112242 A035341 Adjacent sequences:  A125791 A125792 A125793 * A125795 A125796 A125797 KEYWORD nonn AUTHOR Paul D. Hanna, Dec 10 2006 STATUS approved

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Last modified August 8 19:12 EDT 2020. Contains 336298 sequences. (Running on oeis4.)