A256599 Final terms in rows of triangle A256600.

1, 1, 2, 6, 28, 220, 3120, 83664, 4357344, 447134112, 91076016768, 36961806703872, 29943818376782336, 48470579116735833088, 156845720249107280302080, 1014831255949728967492085760, 13130865085565056931098800492544, 339779374103012848597500716186767360

Offset

0,3

Comments

The rows of triangle A256600 consists of terms T(n,k), k=0..2^n-1, where row n+1 equals the concatenation of the partial sums of the prior row with itself.

Links

Table of n, a(n) for n=0..17.

Prog

 (PARI) {AA=vector(15); A=[1]; print1(1, ", "); for(n=1, #AA, A=concat(Vec(Ser(A)/(1-x)), Vec(Ser(A)/(1-x))); AA[n]=A; print1(AA[n][2^(n-1)], ", "))}

Crossrefs

Cf. A256600.

Sequence in context: A226773 A370926 A119966 * A355208 A002047 A126340

Adjacent sequences: A256596 A256597 A256598 * A256600 A256601 A256602

Keyword

nonn

Author

Paul D. Hanna, Apr 03 2015

Status

approved