Numbers k such that the k-th triangular number contains only digits {0,3,6}.
A119064
Numbers k such that the k-th triangular number contains only digits {0,3,6}.
Terms
- a(0) =2a(1) =3a(2) =8a(3) =11a(4) =24a(5) =35a(6) =36a(7) =77a(8) =363a(9) =816a(10) =1095a(11) =1122a(12) =2571a(13) =7788a(14) =25704a(15) =114920a(16) =11281016a(17) =35599539a(18) =355057836a(19) =11489128191a(20) =258315170402a(21) =852060600000
External references
- oeis: A119064