149940

Appears in sequences

• Dimensions of certain Lie algebra (see reference for precise definition).at n=6A133317
• Lower triangular array called S2hat(-1) related to partition number array A144269.at n=37A144270
• Second column (m=2) of triangle S2hat(-1) = A144270.at n=7A144272
• a(n) = ADP(n) is the total number of aperiodic k-double-palindromes of n, where 2 <= k <= n.at n=25A181135
• Numbers with prime factorization pqr^2s^2t^2.at n=8A190379
• Coefficient of x in the reduction by x^2->x+1 of the polynomial p(n,x) defined below in Comments.at n=20A192756
• Number of (w,x,y,z) with all terms in {1,...,n} and 3w>=x+y+z+n.at n=30A212250
• Number of compositions (ordered partitions) of n into multiplicatively perfect numbers (A007422).at n=40A282569
• a(n) = (3*n + 4)*Pochhammer(n, 4) / 4!.at n=15A293475
• Primitive numbers that are the sum of the squares of two of their distinct divisors.at n=34A338485
• a(n) is the number of large or small squares that are used to tile primitive squares of type 1 whose length of side is A344333(n).at n=30A344334
• a(n) is the number of large or small squares that are used to tile primary squares of type 1 (see A344331) whose side length is A345285(n).at n=39A345286