25311

Appears in sequences

• a(n)=(n^5-n-30)/30.at n=15A131211
• Numbers n with property that for each single digit d of n, we can also see the decimal expansion of the d-th prime as a substring of n. Also n may not contain any zero digits.at n=11A135015
• a(n) = (p*(p+4)+1)/2 where (p,p+4) are the n-th cousin prime pair.at n=14A163634
• Let m = n-th number not divisible by 3 (A001651); a(n) = position of m in A065075, or -1 if never appears in A065075.at n=31A230289
• Number of partitions of n with difference 9 between the number of odd parts and the number of even parts, both counted without multiplicity.at n=39A242700
• a(n) is the number of nonisomorphic magmas with n elements which satisfy the identity (xx)y = x(xy) for all x and y (so-called left-alternative magmas).at n=4A350874