Triangle read by rows: enumerates pairs of amicable permutations by rises.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =8a(6) =1a(7) =1a(8) =43a(9) =43a(10) =1a(11) =1a(12) =194a(13) =826a(14) =194a(15) =1a(16) =1a(17) =803a(18) =11284a(19) =11284a(20) =803a(21) =1a(22) =1a(23) =3184a(24) =127905a(25) =392244a(26) =127905a(27) =3184a(28) =1a(29) =1