A048122 a(1) = 1, a(2) = 2, a(n) = a(n-1)^3 - a(n-2)^3.

1, 2, 7, 335, 37595032, 53136308104856854277393, 150028625136232090492356612601560283583272160844416809510162344944689

Offset: 1

Author

David Johnson-Davies

Keywords

• nonn
• easy

Comments

Next terms are 205 and 614 digits long.

Crossrefs

Cf. A048112.

Programs

Mathematica

RecurrenceTable[{a[1]==1,a[2]==2,a[n]==a[n-1]^3-a[n-2]^3},a,{n,8}] (* Harvey P. Dale, Mar 20 2013 *)

Extensions

More terms from Patrick De Geest, Jun 15 1999