This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A325349 #10 Feb 28 2021 12:09:47 %S A325349 1,1,1,2,3,2,4,5,7,7,12,10,13,15,21,21,31,34,38,45,55,60,71,80,84,103, %T A325349 119,134,152,186,192,228,263,292,321,377,399,454,514,565,618,709,752, %U A325349 840,958,1050,1140,1297,1402,1568,1755,1901,2080,2343,2524,2758,3074 %N A325349 Number of integer partitions of n whose augmented differences are distinct. %C A325349 The augmented differences aug(y) of an integer partition y of length k are given by aug(y)_i = y_i - y_{i + 1} + 1 if i < k and aug(y)_k = y_k. For example, aug(6,5,5,3,3,3) = (2,1,3,1,1,3). %C A325349 The Heinz numbers of these partitions are given by A325366. %H A325349 Fausto A. C. Cariboni, <a href="/A325349/b325349.txt">Table of n, a(n) for n = 0..440</a> %e A325349 The a(1) = 1 through a(11) = 10 partitions (A = 10, B = 11): %e A325349 (1) (2) (3) (4) (5) (6) (7) (8) (9) (A) (B) %e A325349 (21) (22) (41) (33) (43) (44) (54) (55) (65) %e A325349 (31) (42) (52) (62) (63) (64) (83) %e A325349 (51) (61) (71) (72) (73) (92) %e A325349 (421) (422) (81) (82) (A1) %e A325349 (431) (522) (91) (443) %e A325349 (521) (621) (433) (641) %e A325349 (442) (722) %e A325349 (541) (731) %e A325349 (622) (821) %e A325349 (631) %e A325349 (721) %e A325349 For example, (4,4,3) has augmented differences (1,2,3), which are distinct, so (4,4,3) is counted under a(11). %t A325349 Table[Length[Select[IntegerPartitions[n],UnsameQ@@Differences[Append[#,1]]&]],{n,0,30}] %Y A325349 Cf. A000837, A049988, A098859, A325324, A325325, A325328, A325351, A325366, A325404. %K A325349 nonn %O A325349 0,4 %A A325349 _Gus Wiseman_, Apr 23 2019