A119041
Triangular numbers composed of digits {0,1,6}.
Original entry on oeis.org
1, 6, 10, 66, 666, 10011, 16110, 66066, 600060, 6601161, 10006101, 11066160, 660061611, 1001661661, 1061660160, 1100016060, 1660061010, 1001000010660, 1066006600011, 10010000160006, 106001000601616, 60660116660011611, 1660616006066010601060060
Offset: 1
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Rest[Select[FromDigits/@Tuples[{0,1,6},17],OddQ[Sqrt[8#+1]]&]] (* Harvey P. Dale, Jan 14 2017 *)
A119043
Triangular numbers composed of digits {0,1,7}.
Original entry on oeis.org
1, 10, 171, 1711, 1770, 10011, 111117701071, 17170010070077710, 101711101707777771, 701000700077010700, 1701111717707771071, 10010107100007777700, 101770070070071771070, 170107111111710707070, 1177170070777107111711, 70071707101001717077017171
Offset: 1
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Select[FromDigits/@Tuples[{0,1,7},12],OddQ[Sqrt[8#+1]]&] (* The program generates the first 8 terms of the sequence. *) (* Harvey P. Dale, Sep 06 2022 *)
A119045
Triangular numbers composed of digits {0,1,8}.
Original entry on oeis.org
1, 10, 1081, 8001, 10011, 81810, 108811, 1188111, 8018010, 8801110, 10888111, 80118811, 88000011, 800180010, 881811010, 1088881111, 10808101800, 80001800010, 81108010180, 108888811111, 810008010801, 880818181011, 888000000111, 8000018000010, 10888888111111
Offset: 1
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Rest[Select[FromDigits/@Tuples[{0,1,8},12],OddQ[Sqrt[8#+1]]&]] (* or *) Select[Accumulate[Range[1328*10^3]],SubsetQ[{0,1,8}, IntegerDigits[ #]]&](* Harvey P. Dale, May 06 2019 *)
A119047
Triangular numbers composed of digits {0,1,9}.
Original entry on oeis.org
1, 10, 91, 190, 990, 10011, 19110, 19900, 90100, 1911990, 1991010, 1999000, 99991011, 199110990, 199910010, 199990000, 901999101, 1000900911, 1111019091, 19991100990, 19999100010, 19999900000, 1999911000990, 1999991000010, 1999999000000, 11109109109010
Offset: 1
A119049
Triangular numbers composed of digits {0,2,3}.
Original entry on oeis.org
3, 300, 3003, 23220, 203203, 322003, 32020003, 333220020, 3200200003, 320002000003, 2330203323003, 32000020000003, 332003222232003, 2203322302033203, 3200000200000003, 320000002000000003, 32000000020000000003, 233200332233023303203, 3200000000200000000003
Offset: 1
A119051
Triangular numbers composed of digits {0,2,5}.
Original entry on oeis.org
55, 5050, 25200, 255255, 500500, 50005000, 525220255, 2250500505, 5000050000, 22052205055, 500000500000, 520022025225, 2205022050055, 2225205025200, 5220005220550, 50000005000000, 220500220500055, 550250022200005, 2552552000225055, 5000000050000000
Offset: 1
A119053
Triangular numbers composed of digits {0,2,6}.
Original entry on oeis.org
6, 66, 666, 66066, 600060, 6626620, 2620626606, 2200022662006, 626622226002066066, 66006260060666006026, 20066002660020662200026, 222220220206620206202066, 22222002022666602062066226, 66222600026062602006000600, 20666666202602626260022660266
Offset: 1
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Select[Flatten[FromDigits /@ Tuples[{0, 2, 6}, 13]], OddQ[ Sqrt[ 8 # + 1]] &] //Rest (* The program generates the first 8 terms of the sequence. *) (* Harvey P. Dale, Sep 26 2023 *)
A119055
Triangular numbers composed of digits {0,2,8}.
Original entry on oeis.org
28, 820, 2080, 80200, 200028, 828828, 8002000, 800020000, 8028028828, 22002880200, 80000200000, 208808222028, 220028220028, 8000002000000, 800000020000000, 2880222880828800, 22822222802022028, 80000000200000000, 8000000002000000000, 80820888088020828828
Offset: 1
A119057
Triangular numbers composed of digits {0,2,9}.
Original entry on oeis.org
990, 2090209222020090, 92209290022092090, 200290202090990220, 222020200990922029290
Offset: 1
A119059
Triangular numbers composed of digits {0,3,4}.
Original entry on oeis.org
3, 300, 3003, 3403, 3444000, 344334403, 433430403, 3434340003, 4033034303403, 3430000044444403, 4333004330434300, 300034434334030003, 333343033034040030, 44400033434030304430, 3340004334430334340000, 30340003004344033440000, 4430044300033330340443003
Offset: 1
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