A247873 - cp's OEIS frontend

A247873 For bases b = 2, 3, ..., n, let the base-b expansion of n be [c_{1,b} c_{2,b} .. c_{r_b,b}], with the most significant "digit" on the left, 0 <= c_{i,b} < b, and c_{1,b} != 0; then a(n) is the number whose base-n expansion is c_{1,n} c_{2,n} ... c_{r_n,n} c_{1,n-1} ... c_{1,2} c_{2,2} ... c_{r_2,2}.

n	a(n)
2	2
3	31
4	4432
5	410276
6	62490570
7	14171701216
8	35813773615616
9	152181888842647477
10	101112131420221011010
11	82143288287525988974045
12	80099420009719637413225296
13	92321614375701368079704516014
14	124155371020622584901673311361738
15	192664414286229496774895472345022366

[2, 31, 4432, 410276, 62490570, 14171701216, 35813773615616, 152181888842647477, 101112131420221011010, 82143288287525988974045, 80099420009719637413225296, 92321614375701368079704516014, 124155371020622584901673311361738, 192664414286229496774895472345022366]

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