33705
domain: N
Appears in sequences
- Convolved Fibonacci numbers.at n=8A001875
- Multiplicity of highest weight (or singular) vectors associated with character chi_13 of Monster module.at n=45A034401
- Denominators of continued fraction convergents to sqrt(312).at n=11A041589
- Numbers k > 1 such that, in base 6, k and k^2 contain the same digits in the same proportion.at n=17A061660
- Odd numbers k such that abs(sigma(k)-2k) <= sqrt(k). Abundance-radius = abs(sigma(k)-2k) does not exceed square root of k and k is odd.at n=17A087415
- Odd numbers n such that abs(sigma(n)-2n) <= n^(1/3). Abundance-radius = abs(sigma(n)-2n) does not exceed cubic root of n and n is odd.at n=7A088010
- Q(n,6), where Q(m,k) is defined in A127080 and A127137.at n=41A127148
- Numbers k such that 3k-4, 3k-2, 3k+2, and 3k+4 are primes.at n=38A173092
- 1/9 the number of (n+1) X 9 0..2 arrays with all 2 X 2 subblocks having the same four values.at n=13A184047
- Odd deficient numbers whose abundancy is closer to 2 than any smaller odd deficient number.at n=9A188597
- Odd numbers n such that 2n/sigma(n) - 1 = 1/x for some positive integer x.at n=19A222263
- Numbers k whose deficiency is 18: sigma(k) - 2*k = -18.at n=3A223608
- Number of (n+5)X6 0..1 matrices with each 6X6 subblock idempotent.at n=7A224570
- T(n,k)=Number of (n+5)X(k+5) 0..1 matrices with each 6X6 subblock idempotent.at n=28A224577
- T(n,k)=Number of (n+5)X(k+5) 0..1 matrices with each 6X6 subblock idempotent.at n=35A224577
- -3-Knödel numbers.at n=34A225507
- Numbers k such that sigma(k) == 0 (mod k-9).at n=10A274564
- First occurrence of run of lucky numbers congruent to 1 mod 4 of exactly length n.at n=7A330360
- Number of squares and rectangles in the interior of the square with vertices (n,0), (0,n), (-n,0) and (0,-n) in a square (x,y)-grid.at n=14A330805
- Number T(n,k) of partitions of [n] for which the difference between the longest and the shortest block size is k; triangle T(n,k), n>=0, 0<=k<=max(0,n-2), read by rows.at n=41A364971