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 A326152 #8 Jun 10 2019 06:16:36 %S A326152 0,0,0,0,0,0,0,0,3,2,2,0,5,0,2,3,5,0,7,0,5,3,2,0,10,2,2,5,5,0,9,0,9,3, %T A326152 2,3,14,0,2,3,10,0,9,0,5,9,2,0,17,2,7,3,5,0,14,3,10,3,2,0,19,0,2,9,13, %U A326152 3,9,0,5,3,9,0,27,0,2,9,5,3,9,0,17,10,2,0 %N A326152 Number of integer partitions of n whose product of parts is 2 * n. %C A326152 Also the number of orderless factorizations of 2 * n into factors > 1 with sum at most n. %C A326152 The Heinz numbers of these partitions are given by A326151. %e A326152 The a(8) = 3 through a(16) = 5 partitions (empty columns not shown) (A = 10): %e A326152 (44) (63) (541) (831) (74111) (A311) (841111) %e A326152 (422) (3321) (5221) (6411) (722111) (651111) (8221111) %e A326152 (2222) (62211) (53211111) (442111111) %e A326152 (432111) (4222111111) %e A326152 (3222111) (22222111111) %t A326152 Table[Length[Select[IntegerPartitions[n],Times@@#==2*n&]],{n,0,30}] %Y A326152 Cf. A003963, A057567, A057568, A096276, A114324, A301987, A319005, A326149, A326151, A326156, A326157. %K A326152 nonn %O A326152 0,9 %A A326152 _Gus Wiseman_, Jun 09 2019