25331

Appears in sequences

• Number of partitions of n into at most 9 parts.at n=45A008638
• Coordination sequence for MgNi2, Position Mg2.at n=39A009935
• Integers that are Rhonda numbers to base 9.at n=2A100973
• Numbers k such that 11k = 6j^2 + 6j + 1.at n=39A106388
• Number of partitions of n*(n+1)/2 into parts not greater than n.at n=9A173519
• Numbers k with the property that it is possible to write the base 2 expansion of k as concat(a_2,b_2), with a_2>0 and b_2>0 such that, converting a_2 and b_2 to base 10 as a and b, we have sigma(a) + sigma (b) = sigma(k) - k.at n=31A258813
• A(n,k) is the n-th Rhonda number to base A002808(k), the k-th composite number; square array A(n,k), n>=1, k>=1, read by antidiagonals.at n=17A291925
• Number of partitions of n with up to five distinct kinds of 1.at n=31A320692