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A159063
a(1)=0, a(n+1) is the smallest nonprime >= n^smallest digit of a(n).
0
0, 1, 4, 81, 4, 625, 36, 343, 512, 9, 1000000000, 1, 12, 14, 14, 15, 16, 18, 18, 20, 1, 21, 22, 529, 576, 9765625, 676, 387420489, 1, 30, 1, 32, 1024, 1, 34, 42875, 1296, 38, 54872, 1521, 40, 1, 42, 1849, 44, 4100625, 1, 48, 5308416, 1, 50, 1, 52, 2809, 1, 55
OFFSET
1,3
EXAMPLE
0, 1(=1^0), 4(>2^1), 81(=3^4), 4(=4^1), 625(=5^4), 36(=6^2), 343(=7^3), 512(=8^3), 9(=9^1), 1000000000(=10^9), 1(=11^0), 12(=12^1), 14(>13=13^1), 14(=14^1), 15(=15^1)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
EXTENSIONS
a(21) inserted and terms from a(28) on corrected by R. J. Mathar, Mar 17 2009
STATUS
approved