A254405 a(n) = floor(b(n)), where b(n) = b(n-1)^(5/2), b(1) = 2.

2, 5, 76, 50535, 574095583180, 249724133031150566792019567784, 31163862905284344117664280692583318559734023853854503847082621442686494830

Offset: 1

Author

Vaclav Kotesovec, Jan 30 2015

Keywords

• nonn
• easy

Crossrefs

Cf. A254406.

Programs

Mathematica

Floor[RecurrenceTable[{a[1]==2,a[n]==a[n-1]^(5/2)},a,{n,1,10}]]
Table[Floor[2^((5/2)^(n-1))], {n, 1, 10}]

Formula

a(n) = floor(2^((5/2)^(n-1))).