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%I #13 Aug 25 2021 03:45:19
%S 8,25,78,245,775,2450,7746,24495,77460,244949,774597,2449490,7745967,
%T 24494898,77459667,244948975,774596670,2449489743,7745966693,
%U 24494897428,77459666925,244948974279,774596669242,2449489742784,7745966692415,24494897427832,77459666924149
%N a(n) is root of square starting with digit 6: first term of runs.
%F a(n) = ceiling(sqrt(6*10^n)), n > 0.
%o (Python)
%o from math import isqrt
%o def a(n): return isqrt(6*10**n) + 1
%o print([a(n) for n in range(1, 28)]) # _Michael S. Branicky_, Aug 25 2021
%Y Subsequence of A045860.
%Y Cf. A067576 (squares), A035076 (2..9).
%K nonn,base
%O 1,1
%A _Patrick De Geest_, Nov 15 1998
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