Triangle, read by rows, where row n lists the coefficients of x^k, k=1..2^n, in the n-th iteration of (x + x^2) for n>=0.

A122888

Triangle, read by rows, where row n lists the coefficients of x^k, k=1..2^n, in the n-th iteration of (x + x^2) for n>=0.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =2a(6) =1a(7) =1a(8) =3a(9) =6a(10) =9a(11) =10a(12) =8a(13) =4a(14) =1a(15) =1a(16) =4a(17) =12a(18) =30a(19) =64a(20) =118a(21) =188a(22) =258a(23) =302a(24) =298a(25) =244a(26) =162a(27) =84a(28) =32a(29) =8

External references