This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A350591 #18 Feb 18 2022 23:00:29 %S A350591 3,7,13,19,37,43,89,101,113,139,151,157,181,197,283,311,313,347,353, %T A350591 383,397,409,421,433,449,479,523,563,571,593,607,619,631,643,661,673, %U A350591 727,751,769,811,823,829,883,911,937,967,971,983,1009,1013,1021,1049,1097 %N A350591 Primes with Hamming distance of one from those in A320102. %C A350591 The intersection of this sequence and A320102 is empty. %C A350591 A320102| 1| 2| 4| 8| 16| 32| 64|128|256| %C A350591 -------------------------------------------- %C A350591 2 | 3| * | | | | | | | | %C A350591 5 | * | 7| * | 13| | 37| | | | %C A350591 17 | * | 19| | | * | | | | | %C A350591 41 | * | 43| | * | | * | | | | %C A350591 73 | * | | | * | 89| | * | | | %C A350591 97 | * | |101| |113| * | * | |353| %C A350591 127 | * | * | * | * | * | * | * | |383| %C A350591 137 | * |139| | * | | | | * | | %C A350591 149 | * |151| * |157| * |181| | * | | %C A350591 173 | * | | * | * | | * | | * | | %C A350591 191 | * | * | * | * | * | * | | * | | %C A350591 193 | * | |197| | | | * | * |449| %C A350591 223 | * | * | * | * | * | | * | * |479| %C A350591 233 | * | | | * | | * | * | * | | %C A350591 239 | * | * | * | * | | * | * | * | | %C A350591 251 | * | * | | * | * | * | * | * | | %C A350591 257 | * | | | | | | | | * | %C A350591 277 | * | | * | | * | | | | * | %C A350591 281 | * |283| | * | * |313| |409| * | %C A350591 307 | * | * |311| | * | * | | | * | %C A350591 331 | * | * | | * |347| | * | | * | %C A350591 337 | * | | | | * | | * | | * | %C A350591 349 | * | | * | * | * | | * | | * | %C A350591 373 | * | | * | | * | * | * | | * | %C A350591 389 | * | | * |397| |421| | * | * | %C A350591 401 | * | | |409| * |433| | * | * | %C A350591 431 | * | * | * | * | | * | | * | * | %C A350591 443 | * | * | | * | * | * | | * | * | %C A350591 491 | * | * | | * | | * | * | * | * | %C A350591 509 | * | | * | * | * | * | * | * | * | %o A350591 (Python) %o A350591 from sympy import isprime, primerange %o A350591 def ok320102(p): %o A350591 onelocs = (i for i, bi in enumerate(bin(p)[2:][::-1]) if bi == '1') %o A350591 return not any(isprime(p-2**k) for k in onelocs) %o A350591 def aupto(limit): %o A350591 alst = [] %o A350591 A350591 = set(p for p in primerange(1, limit+1) if ok320102(p)) %o A350591 for p in primerange(1, limit+1): %o A350591 onelocs = (i for i, bi in enumerate(bin(p)[2:][::-1]) if bi == '1') %o A350591 if any(p-2**k in A350591 for k in onelocs): %o A350591 alst.append(p) %o A350591 return alst %o A350591 print(aupto(770)) # _Michael S. Branicky_, Jan 10 2022 %Y A350591 Cf. A320102. %K A350591 base,nonn %O A350591 1,1 %A A350591 _Paul V. McKinney_, Jan 07 2022 %E A350591 a(27) and beyond from _Michael S. Branicky_, Jan 10 2022