18382

Appears in sequences

• a(n) = Sum_{1 <= i < j <= n} (j-i)^3.at n=12A024166
• Distinct even elements in 4-Pascal triangle A028275 (by row).at n=40A028282
• Even elements to right of central elements in 4-Pascal triangle A028275.at n=33A028286
• 4-white numbers: partition digits of n^4 into blocks of 4 starting at right; sum of these 4-digit numbers equals n.at n=9A037044
• Duplicate of A024166.at n=12A085437
• Number of partitions of n such that the set of parts has an even number of elements.at n=40A092306
• Number of 5k+1 primes (A030430) in range [2^n,2^(n+1)].at n=19A095021
• Triangle read by rows: coefficient of x^n in the power series of x/(1 - m*x - x^2 + x^3 - x^5) in row n, column m=1..n+2.at n=40A117744
• Number of days after Jan 01 1000 such that the date written in the ISO-8601-format YYYYMMDD is palindromic.at n=7A210883
• Positions of record high water marks in A246024.at n=36A246026
• Smallest Rhonda number to base b = n-th composite number, A002808(n).at n=35A255872
• a(n) = n*(n + 1)*(n + 2)*(9*n - 7)/12.at n=12A264852
• Number of non-equivalent ways to place 3 non-attacking ferses on an n X n board.at n=9A278682
• Partial sums of A008137.at n=32A299276
• Number of 6-element subsets of [n] whose sum is a triangular number.at n=20A320852
• Ordered perimeters p of primitive Pythagorean triangles no side of which is squarefree.at n=32A329392