A239538 -id:A239538 - cp's OEIS frontend

A328071 Difference triangle for A327460 read by upwards antidiagonals.

1, 2, 3, 4, 6, 9, -14, -10, -4, 5, 35, 21, 11, 7, 12, -76, -41, -20, -9, -2, 10, 161, 85, 44, 24, 15, 13, 23, -357, -196, -111, -67, -43, -28, -15, 8, 831, 474, 278, 167, 100, 57, 29, 14, 22, -1955, -1124, -650, -372, -205, -105, -48, -19, -5, 17, 4508, 2553

Offset: 1

N. J. A. Sloane, Oct 05 2019

By definition, all terms are distinct.
Conjecture: every positive number appears. (Probably false, see next comment. - N. J. A. Sloane, Oct 09 2019)
239, 776, 2470, and 7805 are the smallest numbers that do not appear in the first 10^4, 10^5, 10^6, and 10^7 terms respectively. - Peter Kagey, Oct 05 2019. (In other words, 239, 776, 2470, and 7805 probably will never appear. - N. J. A. Sloane, Oct 09 2019)

			The difference triangle for A327460 begins:
     1,    3,    9,   5,  12,  10,  23, 8, ...
     2,    6,   -4,   7,  -2,  13, -15, ...
     4,  -10,   11,  -9,  15, -28, ...
   -14,   21,  -20,  24, -43, ...
    35,  -41,   44, -67, ...
   -76,   85, -111, ...
   161, -196, ...
  -357, ...
...
Read this by upwards antidiagonals.

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

Has the same relation to A327460 as A235539 does to A239538.

Terms a(29) and beyond from Peter Kagey, Oct 05 2019

cp's OEIS Frontend

A328071 Difference triangle for A327460 read by upwards antidiagonals.

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