30332

Appears in sequences

• Cycle class sequence c(2n) (the number of true cycles of length 2n in which a certain node is included) for zeolite AEI = AlPO4-18 [Al24P24O96] starting with a T2 atom.at n=6A018942
• Least k such that 1+2+...+k >= E{1,2,...,n}, where E is the 4th elementary symmetric function.at n=22A027918
• Exponential reversion of Liouville's lambda function A008836.at n=6A050388
• Numbers k such that k and k^2 use only the digits 0, 2, 3, 4 and 9.at n=16A136886
• Number of (n+5)X12 0..1 matrices with each 6X6 subblock idempotent.at n=11A224576
• The number of P-positions in the game of Nim with up to four piles, allowing for piles of zero, such that the total number of objects in all piles doesn't exceed 2n.at n=39A237686
• First appearance of n in A016014, or 0 if n never occurs.at n=48A239800
• a(n) is the length of the n-th row of A348575.at n=15A349547