82880
domain: N
Appears in sequences
- Glaisher's function G(n) (18 squares version).at n=21A002609
- Theta series of laminated lattice LAMBDA_11^{min}.at n=7A006910
- Square root of n has the same nonzero digit in each of the first 4 places to the right of the decimal point.at n=32A073585
- a(n) = 81*n^2 - 2*n.at n=31A157507
- Number T(n,k) of defective (binary) heaps on n elements with k defects; triangle T(n,k), n>=0, 0<=k<=max(0,n-1), read by rows.at n=40A306343
- Number T(n,k) of defective (binary) heaps on n elements with k defects; triangle T(n,k), n>=0, 0<=k<=max(0,n-1), read by rows.at n=42A306343
- Number of defective (binary) heaps on n elements with exactly three defects.at n=6A323959
- Number of defective (binary) heaps on n elements with exactly five defects.at n=4A323961
- Smallest integer that is the sum of a prime and the square of a prime in n or more ways.at n=40A381333
- Smallest integer that is the sum of a prime and the square of a prime in n or more ways.at n=41A381333
- Smallest integer that is the sum of a prime and the square of a prime in exactly n ways.at n=41A381334