89888

Appears in sequences

• a(n) contains n digits (either '8' or '9') and is divisible by 2^n.at n=4A053380
• a(n) = Sum_{k=1..n} sigma(k)*2^(n-k) where sigma(k) = A000203(k) is the sum of divisors of k.at n=14A066767
• Smallest multiple of 8 with digit sum n.at n=41A069536
• Number of binary strings of length n with no substrings equal to 0000 0101 or 1011.at n=17A164435
• n-th integer having n-th prime-containing prime signature.at n=24A178849
• Product of the 5th power of a prime and different distinct prime of the 2nd power (p^5*q^2).at n=24A179646
• Number of 5-step one space for components leftwards or up, two space for components rightwards or down asymmetric quasi-bishop's tours (antidiagonal moves become knight moves) on an n X n board summed over all starting positions.at n=25A187609
• Number of (n+1)X(1+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal.at n=4A236904
• Number of (n+1)X(5+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal.at n=0A236908
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal.at n=10A236911
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the upper median plus the minimum of every 2X2 subblock equal.at n=14A236911
• Numbers which have only digits 8 and 9 in base 10.at n=38A256341
• Primitive numbers whose abundance is positive and odd.at n=19A259231
• Numbers whose smallest decimal digit is 8.at n=34A284069
• Nontotients (A005277) that are the product of two totients (A002202).at n=35A329872
• Numbers that have exactly one Zumkeller divisor but are not Zumkeller.at n=16A376877
• a(n) is the least m > 0 such that sigma(m) - 2m = A140863(n).at n=35A380866