176851

Appears in sequences

• Odd tetrahedral numbers: a(n) = (4*n+1)*(4*n+2)*(4*n+3)/6.at n=25A015219
• a(n) = binomial coefficient C(n,100).at n=3A017764
• Squarefree tetrahedral numbers.at n=29A070755
• p*(p+1)*(p+2)/6 where (p,p+2) are twin primes.at n=8A126249
• a(n) = binomial(prime(n+2), 3).at n=25A126995
• Tetrahedral numbers k*(k+1)*(k+2)/6 such that exactly two of k, k+1, and k+2 are prime.at n=10A152916
• Number of second differences of arrays of length n+2 of numbers in 0..5.at n=4A228215
• T(n,k)=Number of second differences of arrays of length n+2 of numbers in 0..k.at n=40A228218
• Number of second differences of arrays of length 7 of numbers in 0..n.at n=4A228222
• a(n) = binomial(3*n + 1,3).at n=33A228887
• Tetrahedral numbers that are not divisible by any smaller tetrahedral number except 1.at n=26A318701
• Tetrahedral numbers which are products of three distinct primes.at n=9A356095