0,2

Essentially, Pascal's triangle A007318 with first column of 1's replaced by 2^n Row sums are A000225(n+1). Diagonal sums are A000225(n)+A000045(n).

Table of n, a(n) for n=0..73.

Binomial transform of triangle A103451: (1; 1,1; 1,0,1; 1,0,0,1;...). - Gary W. Adamson, Aug 08 2007

Cf. A103451.

Sequence in context: A290650 A089606 A140740 * A177953 A138895 A138846

Adjacent sequences: A091915 A091916 A091917 * A091919 A091920 A091921

nonn,tabl

Paul Barry, Feb 13 2004

approved