26563
domain: N
Appears in sequences
- a(n) equals the coefficient of x^n in f(x)^n where f(x)=1+sum(n>=0,x^(2^n)).at n=10A088704
- Brilliant numbers (A078972) whose digit reversal is the product of 2 palindromes greater than 1.at n=29A115681
- 2*n^3 - 313*n^2 + 6823*n - 13633.at n=13A218456
- Numbers k such that k!6 + 36 is prime, where k!6 is the sextuple factorial number (A085158 ).at n=29A288449
- a(n) is the least positive exponent k such that the decimal expansion of 5^k contains n consecutive zeros.at n=9A329172
- Number of distinct sums i^3 + j^3 + k^3 + l^3 for 1<=i<=j<=k<=l<=n.at n=29A374714