68121

Appears in sequences

• a(n) = (7*n+2)^2.at n=37A017006
• a(n) = (8*n + 5)^2.at n=32A017126
• a(n) = (9*n)^2.at n=29A017162
• a(n) = (10*n + 1)^2.at n=26A017282
• a(n) = (11*n + 8)^2.at n=23A017486
• a(n) = (12*n + 9)^2.at n=21A017630
• Numbers with 15 divisors.at n=33A030633
• Squares with initial digit '6'.at n=25A045789
• a(n) = n*(n^2 + 1) if n is even, otherwise (n - 1/2)*(n^2 + 1).at n=41A071289
• Least square n-gonal number greater than 1, or 0 if none exists.at n=20A100252
• a(n) = (29*n)^2.at n=9A133496
• Squares that become a prime number when prefixed with a 4.at n=33A167719
• Squares that become prime numbers when prefixed with an 8.at n=11A167723
• Number of n X 5 arrays with every diagonal and antidiagonal of length L containing a permutation of 1..L.at n=5A179810
• Numbers with prime factorization p^2*q^4.at n=32A189988
• Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically or nw-to-se diagonally exactly three ways, and new values 0..1 introduced in row major order.at n=17A204373
• Numbers n such that n!8-2 is prime.at n=65A204664
• Number of n X 4 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically.at n=9A207725
• Number of n X 5 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 1 and 0 1 1 vertically.at n=7A208115
• Number of nX2 0..1 arrays with all rows and columns having a nonnegative second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative.at n=8A223221