31785

Appears in sequences

• Convolution of odd primes with themselves.at n=24A084370
• 75-gonal numbers: a(n) = n*(73*n-71)/2.at n=30A098230
• Numbers k such that 4*k-1, 8*k-1, 16*k-1, 32*k-1, 64*k-1 and 128*k-1 are all primes.at n=1A101320
• Numbers k such that 4*k-1, 8*k-1, 16*k-1 and 32*k-1 are all primes.at n=21A101794
• Numbers k such that 4*k-1, 8*k-1, 16*k-1, 32*k-1 and 64*k-1 are all primes.at n=4A101994
• Number of (n+5)X9 0..1 matrices with each 6X6 subblock idempotent.at n=12A224573
• Number of partitions of n such that (least part) = (multiplicity of greatest part).at n=41A240180