A082259 Triangle read by rows in which the n-th row contains n multiples of n with digit sum n.

1, 2, 20, 3, 12, 21, 4, 40, 112, 220, 5, 50, 140, 230, 320, 6, 24, 42, 60, 114, 132, 7, 70, 133, 322, 511, 700, 1015, 8, 80, 152, 224, 440, 512, 800, 1016, 9, 18, 27, 36, 45, 54, 63, 72, 81, 190, 280, 370, 460, 550, 640, 730, 820, 910, 1090, 209, 308, 407, 506, 605, 704, 803, 902, 2090, 3080, 4070

Offset

1,2

Links

Alois P. Heinz, Rows n = 1..100, flattened

Example

Triangle begins:
1
2, 20;
3, 12,  21;
4, 40, 112, 220;
5, 50, 140, 230, 320;
6, 24,  42,  60, 114, 132;
7, 70, 133, 322, 511, 700, 1015;
8, 80, 152, 224, 440, 512,  800, 1016;
9, 18,  27,  36,  45,  54,   63,   72,  81;

Mathematica

Table[Take[Select[n Range[10000], Total[IntegerDigits[#]]==n&], n], {n, 20}] // Flatten (* Harvey P. Dale, Sep 16 2019 *)

Crossrefs

Cf. A082260, A082261, A082262, A082263, A002998.

Sequence in context: A210416 A351312 A220943 * A342077 A077339 A077341

Adjacent sequences: A082256 A082257 A082258 * A082260 A082261 A082262

Keyword

base,nonn,tabl,look

Author

Amarnath Murthy, Apr 12 2003

Extensions

Corrected by Anne Donovan, May 29 2003

Corrected and extended by David Wasserman, Aug 26 2004

Status

approved