Triangle T(n,k) read by rows: coefficient [x^k] of the polynomial Product_{i=1..n} (x + q^i) in row n and q = 3.
A173007
Triangle T(n,k) read by rows: coefficient [x^k] of the polynomial Product_{i=1..n} (x + q^i) in row n and q = 3.
Terms
- a(0) =1a(1) =3a(2) =1a(3) =27a(4) =12a(5) =1a(6) =729a(7) =351a(8) =39a(9) =1a(10) =59049a(11) =29160a(12) =3510a(13) =120a(14) =1a(15) =14348907a(16) =7144929a(17) =882090a(18) =32670a(19) =363a(20) =1a(21) =10460353203a(22) =5223002148a(23) =650188539a(24) =24698520a(25) =297297a(26) =1092a(27) =1a(31) =54665851779a(32) =674887059
External references
- oeis: A173007