a(n) is the number of subsets of the divisors of k which sum to k+1 where k is a number all of whose prime divisors are consecutive primes starting at 2.
A359753
a(n) is the number of subsets of the divisors of k which sum to k+1 where k is a number all of whose prime divisors are consecutive primes starting at 2.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =3a(6) =1a(7) =2a(8) =5a(9) =5a(10) =1a(11) =8a(12) =11a(13) =3a(14) =33a(15) =1a(16) =27a(17) =20a(18) =21a(19) =21a(20) =271a(21) =1a(22) =117a(23) =13a(24) =4a(25) =720a(26) =43a(27) =149a(28) =143a(29) =2155
External references
- oeis: A359753