67525

Appears in sequences

• a(n) = 1^2 + 3^2 + 5^2 + 7^2 + ... + (2*n-1)^2 = n*(4*n^2 - 1)/3.at n=37A000447
• Binomial coefficient C(5n, n-12).at n=3A004354
• Dodecahedral numbers: a(n) = n*(3*n - 1)*(3*n - 2)/2.at n=25A006566
• Odd tetrahedral numbers: a(n) = (4*n+1)*(4*n+2)*(4*n+3)/6.at n=18A015219
• Binomial coefficients C(n,72).at n=3A017736
• Binomial coefficients C(75,n).at n=3A017791
• a(n) = (prime(n) - 1)*(prime(n) - 3)*(prime(n) - 5)/48.at n=34A030004
• Integers that are Rhonda numbers to base 14.at n=10A100972
• Sequence related to Hankel transform of super-ballot numbers.at n=35A156126
• a(n) = (5*n + 3)*(5*n + 4)*(5*n + 5)/6.at n=14A300522
• Number of 4-member subsets of [4*n] whose elements sum to a multiple of n.at n=19A318625
• Tetrahedral numbers that are not divisible by any smaller tetrahedral number except 1.at n=19A318701
• a(n) = A000292(6*n + 1) where A000292 are the tetrahedral numbers.at n=12A349682
• Expansion of e.g.f. exp( (5/2) * (1-sqrt(1-4*x)) ).at n=5A369724