Records in A084739.

Terms

a(0) =3a(1) =7a(2) =23a(3) =41a(4) =109a(5) =457a(6) =2137a(7) =14293a(8) =55441a(9) =57991a(10) =221101a(11) =513991a(12) =2447761a(13) =3248701a(14) =4076641a(15) =11643607a(16) =16135981a(17) =25400761a(18) =25738831a(19) =399263281a(20) =741488749a(21) =794932741a(22) =5516118301a(23) =9237839521a(24) =10453202761a(25) =20833333501