A337662 Multiplication table from A337655, read by antidiagonals.

1, 2, 2, 5, 4, 5, 7, 10, 10, 7, 15, 14, 25, 14, 15, 22, 30, 35, 35, 30, 22, 31, 44, 75, 49, 75, 44, 31, 50, 62, 110, 105, 105, 110, 62, 50, 68, 100, 155, 154, 225, 154, 155, 100, 68, 90, 136, 250, 217, 330, 330, 217, 250, 136, 90, 101, 180, 340, 350, 465, 484, 465, 350, 340, 180

Offset

1,2

Links

Peter Kagey, Table of n, a(n) for n = 1..10011 (first 141 antidiagonals, flattened)

Example

The multiplication table from A337655 begins:
   1,   2,   5,   7,   15,   22,   31,   50,   68,   90, ...
   2,   4,  10,  14,   30,   44,   62,  100,  136,  180, ...
   5,  10,  25,  35,   75,  110,  155,  250,  340,  450, ...
   7,  14,  35,  49,  105,  154,  217,  350,  476,  630, ...
  15,  30,  75, 105,  225,  330,  465,  750, 1020, 1350, ...
  22,  44, 110, 154,  330,  484,  682, 1100, 1496, 1980, ...
  31,  62, 155, 217,  465,  682,  961, 1550, 2108, 2790, ...
  50, 100, 250, 350,  750, 1100, 1550, 2500, 3400, 4500, ...
  68, 136, 340, 476, 1020, 1496, 2108, 3400, 4624, 6120, ...
  90, 180, 450, 630, 1350, 1980, 2790, 4500, 6120, 8100, ...
  ...

Crossrefs

Cf. A337655, A337659, A337661, A337662.

Sequence in context: A335690 A330026 A112923 * A286099 A098366 A284127

Adjacent sequences: A337659 A337660 A337661 * A337663 A337664 A337665

Keyword

nonn,tabl

Author

N. J. A. Sloane, Oct 04 2020.

Status

approved