A138863 Concatenation of first two digits and last two digits of n-th Mersenne prime A000668(n).

33, 77, 3131, 1227, 8191, 1371, 5287, 2147, 2351, 6111, 1627, 1727, 6851, 5327, 1087, 1407, 4451, 2571, 1991, 2807, 4711, 3451, 2891, 4371, 4451, 4011, 8571, 5307, 5207, 5111, 7447, 1787, 1291, 4127, 8111, 6251, 1271, 4391, 9271, 1247, 2907, 1247, 3171, 1271, 2027, 1651, 3111

Offset: 1

Author

Omar E. Pol, Apr 02 2008

Keywords

• nonn
• base

Links

• L. C. Noll, Mersenne Prime Digits.

Crossrefs

Cf. A000668, A080173, A104511, A138816, A138817, A138840, A138841, A138862, A138864, A138865, A138866.

Extensions

More terms from Jinyuan Wang, Mar 14 2020