Table with A235538 as first row, and k-th difference of A235538 as (k+1)-th row, read by antidiagonals.

A235539

Table with A235538 as first row, and k-th difference of A235538 as (k+1)-th row, read by antidiagonals.

Terms

    a(0) =1a(1) =3a(2) =2a(3) =9a(4) =6a(5) =4a(6) =26a(7) =17a(8) =11a(9) =7a(10) =5a(11) =-21a(12) =-38a(13) =-49a(14) =-56a(15) =13a(16) =8a(17) =29a(18) =67a(19) =116a(20) =172a(21) =31a(22) =18a(23) =10a(24) =-19a(25) =-86a(26) =-202a(27) =-374a(28) =15a(29) =-16

External references