70700

Appears in sequences

• Triangle T(n,k) (n >= 2, k = 3..n+floor(n/2)) giving number of bicoverings of an n-set with k blocks.at n=21A059443
• Number of 5-block bicoverings of an n-set.at n=6A059946
• Structured triakis icosahedral numbers (vertex structure 4).at n=19A100172
• Partial sums of cupolar numbers (1/3)*(n+1)*(5*n^2+7*n+3) (A096000).at n=19A117066
• Numbers k such that k and k^2 use only the digits 0, 4, 7, 8 and 9.at n=27A136959
• Numbers k which are concatenations k=x//y such that x^2 + y^2 is a multiple of k.at n=29A162463
• Numbers such that each digit is the sum of two or more other digits.at n=26A203591
• Numbers whose set of base 10 digits is {0,7}.at n=20A204094
• 8-digit numbers (padded with leading zeros where necessary) in which the sum of the number consisting of the first four digits and the number consisting of the last four digits equals the number consisting of the middle four digits.at n=14A293686