27225

Appears in sequences

• Squares of tetrahedral numbers: a(n) = binomial(n+3,n)^2.at n=8A001249
• Squares of elements to right of central element in Pascal triangle (by row) that are not 1.at n=22A014720
• Squares of elements to left of the central element in Pascal triangle (by row).at n=32A014721
• Squares of odd elements in Pascal triangle that are not 1.at n=18A014725
• Squares of odd elements in Pascal triangle that are not 1.at n=19A014725
• Squares of odd elements in Pascal triangle.at n=41A014726
• Squares of odd elements in Pascal triangle.at n=40A014726
• Squares of numbers in array formed from odd elements to the right of middle of rows of Pascal triangle that are not 1.at n=8A014760
• Squares of numbers in array formed from odd elements to the right of middle of rows of Pascal triangle.at n=18A014761
• Squares of distinct elements in Pascal triangle.at n=26A014764
• Squares of odd tetrahedral numbers.at n=2A014795
• Odd composite n such that phi(n) * sigma(n) is one less than a square.at n=19A015722
• a(n) = (4*n + 1)^2.at n=41A016814
• a(n) = (5*n)^2.at n=33A016850
• a(n) = (6*n+3)^2.at n=27A016946
• a(n) = (7*n + 4)^2.at n=23A017030
• a(n) = (8*n + 5)^2.at n=20A017126
• a(n) = (9*n + 3)^2.at n=18A017198
• a(n) = (10*n + 5)^2.at n=16A017330
• a(n) = (11*n)^2.at n=15A017390