A254402 a(n) = floor(a(n-1)^(3/2)), a(1) = 3.

3, 5, 11, 36, 216, 3174, 178817, 75615914, 657536414322, 533187198278014959, 389331524481948767367453560, 7682089373864047165337173800294919710603, 673316152668899727226337604512171297382634328995985790889798

Offset: 1

Author

Vaclav Kotesovec, Jan 30 2015

Keywords

• nonn
• easy

Crossrefs

Cf. A254401.

Programs

Mathematica

RecurrenceTable[{a[1]==3,a[n]==Floor[a[n-1]^(3/2)]},a,{n,1,15}]

Formula

a(n) ~ c^((3/2)^n), where c = 2.02960355478331314223272956490362941573262985416270194089589212743... .