A032752 Palindromic Super-4 Numbers.

83338, 1142411, 1571751, 1587851, 2013102, 2081802, 2541452, 3278723, 3394933, 3433343, 3863683, 4684864, 5067605, 5516155, 5985895, 6148416, 6467646, 6771776, 6912196, 7043407, 7136317, 7304037, 7417147, 7605067, 7987897

Offset: 1

Author

Patrick De Geest, May 15 1998

Keywords

• nonn
• base

References

• C. A. Pickover, "Keys to Infinity", New York: Wiley, p. 7, 1995.

Links

• Eric Weisstein's World of Mathematics, Super-d Number.

Crossrefs

Cf. A014569, A032744.

Programs

Mathematica

Select[Range[80*10^5],PalindromeQ[#]&&SequenceCount[IntegerDigits[4#^4],{4,4,4,4}]>0&] (* Harvey P. Dale, Jan 18 2023 *)