26426

Appears in sequences

• a(n) = integer nearest a(n-1)/(sqrt(6) - 2), where a(0) = 1.at n=13A024562
• Decimal concatenations of the 38 quintuples (d1,d2,d3,d4,d5) with elements in {2,4,6} for which there exists a prime p >= 7 such that the differences between the 6 consecutive primes starting with p are (d1,d2,d3,d4,d5).at n=4A078870
• Number of compositions (ordered partitions) of n into powers of 3.at n=27A078932
• Satisfies A(x) = f(x) + x*A(x)*f(x)^2, where f(x) = Sum_{k>=0} x^((3^n-1)/2) and f(x)^2 = 2 - f(x^2) + 2*Sum_{n>0} x^A023745(n). Also, A(x) = f(x)*B(x), where B(x) = Sum_{k>=0} A087218(k)*x^k.at n=13A087219
• Number of compositions of n into divisors of n.at n=27A100346
• a(n+1) = A154771(a(n)) = sum of all distinct "valid substrings" of a(n); a(1)=10 (least nontrivial choice).at n=38A154770
• Square roots of highly composite numbers, floored down: a(n) = A000196(A002182(n)).at n=64A263096
• Number of compositions (ordered partitions) of n into odd divisors of n.at n=27A284466
• Number of compositions (ordered partitions) of n into prime power divisors of n (including 1).at n=27A284839
• Number of compositions (ordered partitions) of n^n into powers of n.at n=3A337990
• Number of compositions (ordered partitions) of 3^n into powers of 3.at n=3A346564