A153453 a(n) = letters(n) + a(n-1); a(0) = 0 in Spanish.
0, 3, 6, 10, 16, 21, 25, 30, 34, 39, 43, 47, 51, 56, 63, 69, 78, 88, 97, 107, 113, 122, 131, 141, 153, 164, 174, 185, 195, 206, 213, 224, 235, 247, 261, 274, 286, 299, 311, 324, 332, 344, 356, 369, 384, 398, 411, 425, 438, 452, 461, 474, 487, 501, 517, 532, 546, 561, 575, 590, 597
Offset: 0
Links
- Álvar Ibeas, Table of n, a(n) for n = 0..10000
Extensions
More terms from Álvar Ibeas, Sep 20 2020