Starts of runs of 4 consecutive Catalan-Niven numbers (A352508).

Terms

a(0) =144a(1) =15630a(2) =164862a(3) =202761a(4) =373788a(5) =450189a(6) =753183a(7) =1403961a(8) =1779105a(9) =2588415a(10) =2673774a(11) =2814229a(12) =2850880a(13) =3009174a(14) =3013722a(15) =3045870a(16) =3091023a(17) =3702390a(18) =3942519a(19) =4042950a(20) =4432128a(21) =4725432a(22) =4938348a(23) =5718942a(24) =5907312a(25) =6268248a(26) =6519615a(27) =6592752a(28) =6791379a(29) =7095492