36395
domain: N
Appears in sequences
- a(n) = n*(n+1)*(n^2+5*n+18)/24.at n=28A051744
- Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 5-point barb 1,1 1,2 2,2 2,3 3,2 in any orientation.at n=9A146139
- Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 5-point barb 1,1 1,2 2,2 2,3 3,2 in any orientation.at n=20A146141
- Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 5-point barb 1,1 1,2 2,2 2,3 3,2 in any orientation.at n=21A146141
- a(n) is least number k >= 3 such that (k^(2^n) + (k-2)^(2^n))/2 is prime.at n=16A302387
- Numbers m such that 72*m + 1, 576*m + 1, 648*m + 1, 1296*m + 1, and 2592*m + 1 are all primes.at n=11A372187