Row sums for A106597.

Terms

a(0) =1a(1) =2a(2) =5a(3) =12a(4) =30a(5) =74a(6) =184a(7) =456a(8) =1132a(9) =2808a(10) =6968a(11) =17288a(12) =42896a(13) =106432a(14) =264080a(15) =655232a(16) =1625760a(17) =4033824a(18) =10008704a(19) =24833536a(20) =61616832a(21) =152883328a(22) =379333248a(23) =941199488a(24) =2335298816a(25) =5794330112a(26) =14376858880a(27) =35671780352a(28) =88508618240