NSTEPFIBONACCI(NStep,NumberUpto, NumberFrom)

where,

$NStep$ number of elements prior to this index to be considered for the summation.
$NumberUpto$ is any integer.
is any integer to start from, with default 0.
- FIBONNACI(), returns the fibonnaci sequence.
- Also

TRIBONACCI Step Size 3

TETRANACCI Step Size 4

PENTANACCI Step Size 5

HEXANACCI Step Size 6

HEPTANACCI Step Size 7

Description

NSTEPFIBONACCI(1..10,50)

TETRANACCI(1..50)

NSTEPFIBONACCI(9,20)

0 1 1 2 4 8 16 32 64 128 256 511 1021 2040 4076 8144 16272 32512 64960 129792 259328

Adds up past 9 numbers.