A338034 Multiplication table of A337656, read by antidiagonals.

0, 0, 0, 0, 1, 0, 0, 3, 3, 0, 0, 7, 9, 7, 0, 0, 12, 21, 21, 12, 0, 0, 20, 36, 49, 36, 20, 0, 0, 30, 60, 84, 84, 60, 30, 0, 0, 44, 90, 140, 144, 140, 90, 44, 0, 0, 65, 132, 210, 240, 240, 210, 132, 65, 0, 0, 91, 195, 308, 360, 400, 360, 308, 195, 91, 0

Offset

1,8

Links

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

Example

Multiplication table begins:
   * | 0  1   3   7  12   20   30   44   65
-----+-------------------------------------
   0 | 0  0   0   0   0    0    0    0    0
   1 | 0  1   3   7  12   20   30   44   65
   3 | 0  3   9  21  36   60   90  132  195
   7 | 0  7  21  49  84  140  210  308  455
  12 | 0 12  36  84 144  240  360  528  780
  20 | 0 20  60 140 240  400  600  880 1300
  30 | 0 30  90 210 360  600  900 1320 1950
  44 | 0 44 132 308 528  880 1320 1936 2860
  65 | 0 65 195 455 780 1300 1950 2860 4225

Crossrefs

Cf. A337656, A337657, A338032 (addition table), A338033 (by rows).

Cf. A337662, A337975, A338017.

Sequence in context: A129533 A360849 A155999 * A299904 A221768 A283071

Adjacent sequences: A338031 A338032 A338033 * A338035 A338036 A338037

Keyword

nonn,tabl

Author

Peter Kagey, Oct 07 2020

Status

approved