37065

Appears in sequences

• a(n) = n*(n^2 + 1)/2.at n=42A006003
• Odd numbers with exactly 4 distinct palindromic prime factors.at n=15A046406
• Number of periodic palindromes using exactly three different symbols.at n=17A056489
• Numbers k such that prime(k) + prime(k+1)*2 is a square.at n=35A064504
• Triangle read by rows: T(n,k) is the number of paths in the right half-plane from (0,0) to (n,0), consisting of steps U=(1,1), D=(1,-1), h=(1,0) and H=(2,0), having k h=(1,0) steps (0<=k<=n).at n=69A132884
• The triangle T_2(n, m), where T_2(n, m) is the number of surjective multi-valued functions from {1, 1, 2, 3, ..., n-1} to {1, 2, 3, ..., m} by rows (n >= 1, 1 <= m <= n).at n=47A172106
• Row sums of the triangular array A246696.at n=41A246697
• Number of 3 X n 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1 neighboring 1.at n=10A297396
• Number of n X 3 0..1 arrays with every element unequal to 2 or 3 horizontally or vertically adjacent elements, with upper left element zero.at n=19A303631
• a(n) = (n - 1)*(4*n^2 - 8*n + 5).at n=21A317297
• Numbers k such that N = k^6 is a twin rank (cf. A002822: 6N +- 1 are twin primes).at n=15A326236
• Number of edges formed inside a right triangle by the straight line segments mutually connecting all vertices and points on the two shorter edges whose positions equal the Farey series of order n.at n=6A359970
• Irregular triangle read by rows where T(n,k) is the number of simple graphs covering n vertices with exactly k triangles, 0 <= k <= binomial(n,3).at n=53A372167
• Number of length n binary palindromic words which are not all zero in which 1's occur in blocks of at least 4.at n=50A386709