Row sums of Clark's triangle A046902.

Terms

a(0) =0a(1) =7a(2) =20a(3) =46a(4) =98a(5) =202a(6) =410a(7) =826a(8) =1658a(9) =3322a(10) =6650a(11) =13306a(12) =26618a(13) =53242a(14) =106490a(15) =212986a(16) =425978a(17) =851962a(18) =1703930a(19) =3407866a(20) =6815738a(21) =13631482a(22) =27262970a(23) =54525946a(24) =109051898a(25) =218103802a(26) =436207610a(27) =872415226a(28) =1744830458a(29) =3489660922