19268
domain: N
Appears in sequences
- Number of steps to compute n-th prime in PRIMEGAME (slow version).at n=8A007547
- s(1)t(n) + s(2)t(n-1) + ... + s(k)t(n+1-k), where k = [ (n+1)/2 ], s = A000201 (lower Wythoff sequence), t = A001950 (upper Wythoff sequence).at n=36A024686
- Smallest of 5 consecutive integers divisible respectively by 5 consecutive primes.at n=10A072730
- Members of 3-cycles of permutation A111273.at n=16A113701
- Number of right triangles on a (n+1)X7 grid.at n=15A189811
- G.f.: Product_{n=-oo..+oo} ( 1 + x^n*(1 - x^n)^n ).at n=34A293602
- Number of nX4 0..1 arrays with every element equal to 3, 5, 6 or 8 king-move adjacent elements, with upper left element zero.at n=20A298179
- Number of partitions p of n such that min(p) < (number of parts of p) <= max(p).at n=39A325342
- Positive integers which are not twice a positive square and cannot be written as twice a positive square plus an odd prime or twice a positive square plus twice an odd prime.at n=45A347567