The Enneanacci Sequence is the series of numbers, every next number is found by adding up the nine numbers before it. For example: 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 4, 8, 16, 32, 64, 128, 256, 511, 1021, 2040, 4076, 8144, 16272, 32512, 64960, 129792, 259328, 518145, 1035269, 2068498, 4132920, 8257696, 16499120, 32965728, 65866496, 131603200, 262947072, 525375999, 1049716729, 2097364960, ... (Sequence A104144 in the OEIS)
Calculate Enneanacci Numbers
100, 150, 200
We use this key in the next step to generate a public address: