21944520

Appears in sequences

• Triangle T, read by rows, where column n of T = column 0 of T^(2^n) for n>0, such that column 0 (A129092) equals the row sums of the prior row, starting with T(0,0)=1.at n=48A129100
• Column 3 of triangle A129100; also equals column 0 of matrix power A129100^8.at n=6A129103