36526
domain: N
Appears in sequences
- G.f.: Product((1+x^i)/(1-x^i),i=1..n-1)/(1-x^n), with n = 8.at n=29A091779
- G.f.: Product_{n>=1} (1 + x^n + x^(n+1)).at n=42A160571
- Triangle read by rows: T(n,k) is the number of descent sequences of length n with exactly k-1 descents, n>=1, 1<=k<=n.at n=59A225624
- Numbers n such that n^2 is a sum of 2 and also of 4 consecutive primes.at n=31A252066
- Composites whose prime factorization in base 8 is an anagram of the number in base 8.at n=13A260052
- Solution of the complementary equation a(n) = a(n-1) + a(n-2) + b(n-1)^2, where a(0) = 1, a(1) = 2, b(0) = 3, b(1) = 4, and (a(n)) and (b(n)) are increasing complementary sequences.at n=15A296251
- Number of minimum dominating sets in the grid graph P_4 X P_n.at n=37A350822
- Irregular triangle read by rows: T(n,k), n > 1 and k <= n, is the smallest composite number x whose set of digits and the set of digits in all prime factors of x, when written in base n, contain exactly k digits in common, or -1 if no such number exists.at n=39A374225