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A109690
Smallest 4th power that contains exactly n occurrences of the string n.
2
1, 1, 234256, 33362176, 4640470641, 5035553952016, 4396167663616, 4777933277779216, 3588188855118837841, 999395939249909776
OFFSET
0,3
COMMENTS
a(11) = 329907785371111117252064111115111841, assuming occurrences can overlap (cf. A109689). - Michael S. Branicky, Dec 21 2020
EXAMPLE
a(2)=234256 since this is the first 4th power that contains exactly two 2's.
PROG
(Python) # a() in A109691
print([a(n, POW=4) for n in range(10)]) # Michael S. Branicky, Dec 21 2020
CROSSREFS
Cf. A109689 (cubes), A109691 (5th powers).
Sequence in context: A250858 A233902 A202938 * A013905 A353634 A237239
KEYWORD
base,more,nonn
AUTHOR
Erich Friedman, Aug 07 2005
STATUS
approved