25345
domain: N
Appears in sequences
- Rhombic dodecahedral numbers: a(n) = n^4 - (n - 1)^4.at n=18A005917
- a(n) = n*(n^2 + 1)/2.at n=37A006003
- Numbers k such that the continued fraction for sqrt(k) has period 55.at n=36A020394
- "DIK" (bracelet, indistinct, unlabeled) transform of A000237.at n=10A035349
- Sum of the elements in any transversal of a prime(n) X prime(n) array containing the numbers from 1 to prime(n)^2 in standard order.at n=11A066886
- Row sums of triangle A074135.at n=36A074132
- Sum of terms in each group in A074147.at n=36A074149
- Sums of terms of groups in A075621.at n=36A075625
- Numbers m such that numerator of Sum_{k=1..m} 1/(prime(k)-k) is prime.at n=52A092065
- Primitive subsequence of A111105.at n=36A137559
- a(n) = 44*n^2 + 1.at n=24A158630
- Number of (w,x,y) with all terms in {0,...,n} and even range.at n=36A212975
- Sum of squares of cycle lengths for different cycles in Fibonacci-like sequences modulo n.at n=22A233246
- 40-gonal numbers: a(n) = 38*n*(n-1)/2 + n.at n=37A261191
- Pseudoprimes to base 7, written in base 7.at n=14A262104
- The number of distinct positions on an infinite chessboard reachable by the (3,4)-leaper in <= n moves.at n=21A297741
- a(n) = (1/2)*(n^3 + n*(n mod 2)).at n=36A317614
- Expansion of Product_{i>=1, j>=1} (1 + i*j*x^(i*j)).at n=14A318416
- Odd composite integers m such that A006497(m) == 3 (mod m).at n=31A335669
- Odd composite integers m such that A014448(m) == 4 (mod m).at n=41A335670