A119050
Numbers k such that the k-th triangular number contains only digits {0,2,3}.
Original entry on oeis.org
2, 24, 77, 215, 637, 802, 8002, 25815, 80002, 800002, 2158797, 8000002, 25768322, 66382562, 80000002, 800000002, 8000000002, 21596311362, 80000000002, 800000000002, 8000000000002, 80000000000002, 800000000000002
Offset: 1
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[n: n in [1..2*10^7] | Set(Intseq(Binomial(n+1, 2))) subset [0, 2, 3]]; // Vincenzo Librandi, Oct 07 2015
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Select[Range[3 10^7], Complement[IntegerDigits[Binomial[# + 1, 2]], {0, 2, 3}] == {}&] (* Vincenzo Librandi,Oct 07 2015 *)
A119054
Numbers k such that the k-th triangular number contains only digits {0,2,6}.
Original entry on oeis.org
3, 11, 36, 363, 1095, 3640, 72396, 2097628, 1119484011, 11489670148, 200329741476, 666663663636, 6666633636651, 11508483829424, 203306006810436
Offset: 1
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[n: n in [1..4*10^6] | Set(Intseq(Binomial(n+1, 2))) subset [0, 2, 6]]; // Vincenzo Librandi, Dec 25 2015
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Select[Range[2 10^7], Complement[IntegerDigits[Binomial[# + 1, 2]], {0, 2, 6}] == {} &] (* Vincenzo Librandi, Dec 25 2015 *)
A119056
Numbers k such that the k-th triangular number contains only digits {0,2,8}.
Original entry on oeis.org
7, 40, 64, 400, 632, 1287, 4000, 40000, 126712, 209775, 400000, 646232, 663367, 4000000, 40000000, 75897600, 213645607, 400000000, 4000000000, 12713841912, 40000000000, 400000000000, 749506541784, 4000000000000, 20397451214712
Offset: 1
A119058
Numbers k such that the k-th triangular number contains only digits {0,2,9}.
Original entry on oeis.org
44, 64656155, 429439844, 632914215, 21072266180
Offset: 1
A119060
Numbers k such that the k-th triangular number contains only digits {0,3,4}.
Original entry on oeis.org
2, 24, 77, 82, 2624, 26242, 29442, 82877, 2840082, 82825117, 93091399, 774641122, 816508460, 9423378739, 81731319999, 246333119999, 2976590096077, 8164967169602
Offset: 1
A119062
Numbers k such that the k-th triangular number contains only digits {0,3,5}.
Original entry on oeis.org
2, 10, 24, 77, 100, 1000, 10000, 100000, 257100, 1000000, 2647829, 10000000, 10349399, 26657100, 100000000, 316340024, 775313489, 1000000000, 10000000000, 100000000000, 1000000000000, 1003347948924, 8403017712114
Offset: 1
A119064
Numbers k such that the k-th triangular number contains only digits {0,3,6}.
Original entry on oeis.org
2, 3, 8, 11, 24, 35, 36, 77, 363, 816, 1095, 1122, 2571, 7788, 25704, 114920, 11281016, 35599539, 355057836, 11489128191, 258315170402, 852060600000, 1151781516003, 3559869761679, 25703436746877, 25704497685660
Offset: 1
A119066
Numbers k such that the k-th triangular number contains only digits {0,3,7}.
Original entry on oeis.org
2, 24, 37, 77, 775, 3943940, 7844837, 124153399, 393193023940, 78406253666877, 256907649052235, 1240997802874797
Offset: 1
A119068
Numbers k such that the k-th triangular number contains only digits {0,3,8}.
Original entry on oeis.org
2, 24, 77, 126797, 12714624, 129079888464, 77885018846797, 4009565647007922, 40750555532000002
Offset: 1
A119070
Numbers k such that the k-th triangular number contains only digits {0,3,9}.
Original entry on oeis.org
2, 24, 42, 44, 77, 260, 282, 824, 1364, 8835, 44517, 88419, 89375, 256917, 282842, 426600, 2603844, 14141435, 424287482, 894359435, 24629287602, 81351102024, 137064943244, 1371082295364, 2489711201364, 8870066515082
Offset: 1
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