A179224 Iterative mapping with offset: a(1)=200662, a(n)=A095904(a(n-1)-1).

200662, 4691, 8520, 1183, 904, 191, 71, 52, 56, 31, 22, 17, 121, 53, 66, 48, 33, 28, 24, 21, 16, 13, 14, 27, 81, 38, 361, 3844, 2392, 10032, 3910, 20790

Offset: 1

Author

Will Nicholes, Jul 10 2010

Keywords

• nonn

Comments

a(33) is greater than 10^10 and of the form (p^7)(q^4), where p and q are distinct primes. Of the sequences of type a(n)=A095904(a(n-1)-1), this one has an exceptionally high number of terms under 1000. It is unknown if this sequence continues indefinitely in both directions, is part of a loop, or is part of the sequence A179223.

Links

• Will Nicholes, Iterative mapping of prime signatures.

Crossrefs

Cf. A095904, A179223.