A partition product of Stirling_2 type [parameter k = 4] with biggest-part statistic (triangle read by rows).

A157404

A partition product of Stirling_2 type [parameter k = 4] with biggest-part statistic (triangle read by rows).

Terms

    a(0) =1a(1) =1a(2) =4a(3) =1a(4) =12a(5) =36a(6) =1a(7) =72a(8) =144a(9) =504a(10) =1a(11) =280a(12) =1800a(13) =2520a(14) =9576a(15) =1a(16) =1740a(17) =22320a(18) =37800a(19) =57456a(20) =229824a(21) =1a(22) =8484a(23) =182700a(24) =864360a(25) =1005480a(26) =1608768a(27) =6664896a(28) =1a(29) =57232

External references